{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import pandas as pd\n",
    "import h5py\n",
    "import os\n",
    "import matplotlib.pyplot as plt\n",
    "import glob    # similar package like 'os'\n",
    "#from datetime import datetime\n",
    "import datetime as dt\n",
    "from dateutil.parser import parse"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Directory of the hdf5 file to process\n",
    "datdir='/home/jwpark/TROPOMI/data/TCN/EastAsia/'\n",
    "#datdir='/Users/jonguk/Desktop/Pandora_satellite_intercomparison/data/OMI/TCN/'\n",
    "#datdir='/Users/jonguk/Desktop/Pandora_satellite_intercomparison/data/OMPS/TCN/'\n",
    "files=os.listdir(datdir)   # returns only the file name within the directory\n",
    "files2=[i for i in files if i.endswith('.nc')] # finding file that ends with '.nc' in certain directory\n",
    "files3=glob.glob(datdir+'*.nc')   # returns full file name with directory\n",
    "\n",
    "# print(files)\n",
    "# print(files2)\n",
    "# print(files3)\n",
    "\n",
    "#Predetermined lat-lon (surface Pandora station)\n",
    "#Seoul-SNU site: 37.458 N / 126.951 E\n",
    "#UNIST (Ulsan) site: 35.5745 N / 129.1896 E \n",
    "#Pusan site: 35.2353 N / 129.0825 E\n",
    "sitename='Seoul_SNU'\n",
    "#lat_pandora= 30\n",
    "#lon_pandora= 90\n",
    "lat_pandora= 37.458\n",
    "lon_pandora= 126.951\n",
    "pixel_coadd=1     #(n*n) spatial pixels coadded\n",
    "tolrange=0.25    #deg  \n",
    "qa_value_threshold=75 #recommended to be >75 (screen out the case with significant cloud cover) but can be altered to >50 (when including some successful retrieval over clouds)\n",
    "# qa_value_threshold must exceed 75 when analyzing tropospheric NO2 (or Total column NO2)\n",
    "unittoDU=2241.15"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2226"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(files3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "0  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200722T175338_20200722T193508_14377_01_010302_20200729T075308.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.04492362982929021 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191001T012402_20191001T030531_10182_01_010302_20191007T032229.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.08984725965858043 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191001T030531_20191001T044700_10183_01_010302_20191007T050517.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "0.13477088948787064 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "3  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191001T044700_20191001T062830_10184_01_010302_20191007T072640.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.17969451931716085 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "4  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191002T010453_20191002T024623_10196_01_010302_20191008T025931.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.22461814914645103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "5  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191002T024623_20191002T042752_10197_01_010302_20191008T050529.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.790  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.743e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-02 03:48:44.779000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.2695417789757413 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "6  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191002T042752_20191002T060921_10198_01_010302_20191008T064850.nc\n"
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "<ipython-input-4-ce28417c1653>:197: RuntimeWarning: Mean of empty slice\n",
      "  print('VCD: ', '%6.3e'%(np.nanmean(tempVCD2)*unittoDU), 'DU')\n",
      "<ipython-input-4-ce28417c1653>:198: RuntimeWarning: Mean of empty slice\n",
      "  print('VCD_summed (VCD_trop+VCD_strat): ', '%6.3e'%(np.nanmean(tempVCD_summed2)*unittoDU), 'DU')\n",
      "<ipython-input-4-ce28417c1653>:199: RuntimeWarning: Mean of empty slice\n",
      "  print('VCD_trop: ', '%6.3e'%(np.nanmean(tempVCD_trop2)*unittoDU), 'DU')\n",
      "<ipython-input-4-ce28417c1653>:200: RuntimeWarning: Mean of empty slice\n",
      "  print('SCD: ', '%6.3e'%(np.nanmean(tempSCD2)*unittoDU), 'DU')\n",
      "<ipython-input-4-ce28417c1653>:212: RuntimeWarning: Mean of empty slice\n",
      "  tempsciencedata[0,0]=np.nanmean(tempVCD2)*unittoDU\n",
      "<ipython-input-4-ce28417c1653>:213: RuntimeWarning: Mean of empty slice\n",
      "  tempsciencedata[0,1]=np.nanmean(tempVCD_summed2)*unittoDU\n",
      "<ipython-input-4-ce28417c1653>:214: RuntimeWarning: Mean of empty slice\n",
      "  tempsciencedata[0,2]=np.nanmean(tempVCD_trop2)*unittoDU\n",
      "<ipython-input-4-ce28417c1653>:215: RuntimeWarning: Mean of empty slice\n",
      "  tempsciencedata[0,3]=np.nanmean(tempSCD2)*unittoDU\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.915  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.538e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-02 05:28:58.123000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.3144654088050315 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "7  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191003T022714_20191003T040844_10211_01_010302_20191009T043944.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.3593890386343217 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "8  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191003T040844_20191003T055013_10212_01_010302_20191009T062317.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.806  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.283e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-03 05:09:56.747000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.40431266846361186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "9  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191004T020806_20191004T034935_10225_01_010302_20191010T041011.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.44923629829290207 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "10  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191004T034935_20191004T053105_10226_01_010302_20191010T061001.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.026  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.996e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-04 04:51:00.897000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.970e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.996e-01 DU\n",
      "VCD_trop:  3.967e-01 DU\n",
      "SCD:  7.426e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.4941599281221923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "11  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191004T053105_20191004T071234_10227_01_010302_20191010T074936.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.5390835579514826 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "12  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191005T014858_20191005T033027_10239_01_010302_20191011T034501.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.5840071877807728 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "13  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191005T033027_20191005T051156_10240_01_010302_20191011T054321.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.807  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.269e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-05 04:32:12.009000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.628930817610063 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "14  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191005T051156_20191005T065326_10241_01_010302_20191011T073250.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.6738544474393532 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "15  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191006T012949_20191006T031119_10253_01_010302_20191012T031751.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.7187780772686434 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "16  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191006T031119_20191006T045248_10254_01_010302_20191012T051434.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.407  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.404e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-06 04:13:31.281000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.7637017070979335 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "17  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191006T045248_20191006T063417_10255_01_010302_20191012T071515.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.8086253369272237 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "18  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191007T011041_20191007T025210_10267_01_010302_20191013T025536.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.8535489667565139 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "19  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191007T025210_20191007T043340_10268_01_010302_20191013T044623.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.240  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.089e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-07 03:54:57.276000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.8984725965858041 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "20  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191007T043340_20191007T061509_10269_01_010302_20191013T070555.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.722  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.431e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-07 05:35:21.780000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "0.9433962264150944 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "21  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191008T005133_20191008T023302_10281_01_010302_20191014T024052.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "0.9883198562443846 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "22  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191008T023302_20191008T041431_10282_01_010302_20191014T042101.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.664  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.734e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-08 03:36:27.350000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.763e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.734e-01 DU\n",
      "VCD_trop:  1.737e-01 DU\n",
      "SCD:  6.456e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.0332434860736748 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "23  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191008T041431_20191008T055601_10283_01_010302_20191014T065347.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.115  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.845e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-08 05:16:18.495000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.817e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.845e-01 DU\n",
      "VCD_trop:  1.800e-01 DU\n",
      "SCD:  5.316e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.078167115902965 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "24  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191009T021354_20191009T035523_10296_01_010302_20191015T040018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.1230907457322552 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "25  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191009T035523_20191009T053652_10297_01_010302_20191015T062442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.325  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.683e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-09 04:57:20.491000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.117e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.683e+00 DU\n",
      "VCD_trop:  1.577e+00 DU\n",
      "SCD:  1.221e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.1680143755615455 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "26  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191009T053652_20191009T071822_10298_01_010302_20191015T080608.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.2129380053908356 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "27  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191010T015445_20191010T033615_10310_01_010302_20191016T034252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.257861635220126 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "28  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191010T033615_20191010T051744_10311_01_010302_20191016T060003.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.791  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.547e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-10 04:38:29.447000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.302785265049416 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "29  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191010T051744_20191010T065913_10312_01_010302_20191016T072833.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.3477088948787064 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "30  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191011T013537_20191011T031706_10324_01_010302_20191017T032713.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.3926325247079965 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "31  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191011T031706_20191011T045836_10325_01_010302_20191017T053007.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.193  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.122e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-11 04:19:45.724000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.358e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.122e-01 DU\n",
      "VCD_trop:  5.228e-01 DU\n",
      "SCD:  6.779e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.4375561545372868 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "32  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191011T045836_20191011T064005_10326_01_010302_20191017T070944.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.482479784366577 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "33  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191012T011628_20191012T025758_10338_01_010302_20191018T031909.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.527403414195867 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "34  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191012T025758_20191012T043927_10339_01_010302_20191018T045236.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.928  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.618e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-12 04:01:09.921000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.501e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.618e-01 DU\n",
      "VCD_trop:  1.771e-01 DU\n",
      "SCD:  5.054e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.5723270440251573 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "35  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191012T043927_20191012T062057_10340_01_010302_20191018T064332.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.6172506738544474 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "36  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191013T005720_20191013T023850_10352_01_010302_20191019T025448.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.6621743036837375 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "37  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191013T023850_20191013T042019_10353_01_010302_20191019T043311.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.726  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.091e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-13 03:42:38.641000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.159e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.091e-01 DU\n",
      "VCD_trop:  2.176e-01 DU\n",
      "SCD:  5.942e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.7070979335130279 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "38  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191013T042019_20191013T060148_10354_01_010302_20191019T062818.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.240  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.426e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-13 05:22:40.826000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.081e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.426e-01 DU\n",
      "VCD_trop:  3.447e-01 DU\n",
      "SCD:  7.595e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.7520215633423182 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "39  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191014T021941_20191014T040111_10367_01_010302_20191020T043330.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.7969451931716083 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "40  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191014T040111_20191014T054240_10368_01_010302_20191020T061001.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.256  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.249e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-14 05:03:41.506000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.923e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.249e-01 DU\n",
      "VCD_trop:  3.201e-01 DU\n",
      "SCD:  6.990e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.8418688230008984 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "41  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191014T054240_20191014T072409_10369_01_010302_20191020T080119.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.8867924528301887 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "42  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191015T020033_20191015T034202_10381_01_010302_20191021T041217.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "1.9317160826594788 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "43  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191015T034202_20191015T052332_10382_01_010302_20191021T055647.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.760  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.200e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-15 04:44:47.408000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "1.9766397124887691 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "44  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191015T052332_20191015T070501_10383_01_010302_20191021T075431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.0215633423180592 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "45  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191016T014125_20191016T032254_10395_01_010302_20191022T033526.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.0664869721473496 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "46  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191016T032254_20191016T050423_10396_01_010302_20191022T053511.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.454  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.333e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-16 04:26:01.292000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.144e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.333e+00 DU\n",
      "VCD_trop:  1.236e+00 DU\n",
      "SCD:  1.511e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.11141060197664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "47  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191016T050423_20191016T064553_10397_01_010302_20191022T072847.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.15633423180593 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "48  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191017T012216_20191017T030346_10409_01_010302_20191023T030758.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.20125786163522 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "49  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191017T030346_20191017T044515_10410_01_010302_20191023T045032.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.296  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.193e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-17 04:07:22.497000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.682e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.193e+00 DU\n",
      "VCD_trop:  1.108e+00 DU\n",
      "SCD:  8.786e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.2461814914645104 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "50  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191017T044515_20191017T062644_10411_01_010302_20191023T071752.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.2911051212938007 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "51  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191018T010308_20191018T024437_10423_01_010302_20191024T025520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.336028751123091 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "52  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191018T024437_20191018T042607_10424_01_010302_20191024T043506.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.692  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.715e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-18 03:48:49.941000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.380952380952381 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "53  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191018T042607_20191018T060736_10425_01_010302_20191024T065109.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.215  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.493e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-18 05:29:04.246000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.4258760107816713 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "54  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191019T022529_20191019T040659_10438_01_010302_20191025T040827.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.4707996406109616 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "55  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191019T040659_20191019T054828_10439_01_010302_20191025T065134.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.846  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.937e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-19 05:10:02.053000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.057e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.937e-01 DU\n",
      "VCD_trop:  3.039e-01 DU\n",
      "SCD:  7.487e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.515723270440252 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "56  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191020T020621_20191020T034750_10452_01_010302_20191026T034114.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.560646900269542 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "57  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191020T034750_20191020T052920_10453_01_010302_20191026T060202.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   46.659  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.326e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-20 04:51:06.579000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.229e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.326e-01 DU\n",
      "VCD_trop:  4.469e-01 DU\n",
      "SCD:  8.423e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.605570530098832 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "58  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191020T052920_20191020T071049_10454_01_010302_20191026T075332.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.6504941599281224 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "59  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191021T014713_20191021T032842_10466_01_010302_20191027T035127.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.6954177897574128 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "60  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191021T032842_20191021T051012_10467_01_010302_20191027T055046.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.517  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.539e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-21 04:32:17.827000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.412e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.539e-01 DU\n",
      "VCD_trop:  7.715e-01 DU\n",
      "SCD:  1.077e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.7403414195867026 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "61  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191021T051012_20191021T065141_10468_01_010302_20191027T074111.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.785265049415993 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "62  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191022T012805_20191022T030934_10480_01_010302_20191028T031825.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.8301886792452833 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "63  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191022T030934_20191022T045104_10481_01_010302_20191028T052240.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.196  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.228e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-22 04:13:36.876000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.823e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.228e+00 DU\n",
      "VCD_trop:  1.142e+00 DU\n",
      "SCD:  1.144e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "2.8751123090745736 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "64  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191022T045104_20191022T063233_10482_01_010302_20191028T070510.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.9200359389038635 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "65  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191023T010857_20191023T025026_10494_01_010302_20191029T030541.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "2.964959568733154 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "66  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191023T025026_20191023T043155_10495_01_010302_20191029T050854.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.776  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.731e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-23 03:55:02.406000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.009883198562444 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "67  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191023T043155_20191023T061325_10496_01_010302_20191029T065438.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.888  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.252e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-23 05:35:27.511000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.054806828391734 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "68  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191024T004949_20191024T023118_10508_01_010302_20191030T024739.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.0997304582210243 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "69  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191024T023118_20191024T041247_10509_01_010302_20191030T042500.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.923  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.845e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-24 03:36:32.256000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.489e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.845e-01 DU\n",
      "VCD_trop:  2.951e-01 DU\n",
      "SCD:  6.895e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.1446540880503147 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "70  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191024T041247_20191024T055417_10510_01_010302_20191030T062658.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.298  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.942e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-24 05:16:24.601000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.656e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.942e-01 DU\n",
      "VCD_trop:  2.984e-01 DU\n",
      "SCD:  7.617e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.1895777178796045 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "71  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191025T021210_20191025T035339_10523_01_010302_20191031T040635.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.234501347708895 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "72  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191025T035339_20191025T053509_10524_01_010302_20191031T062142.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.867  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.209e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-25 04:57:25.892000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.279424977538185 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "73  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191025T053509_20191025T071638_10525_01_010302_20191031T081144.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.324348607367475 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "74  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191026T015302_20191026T033431_10537_01_010302_20191101T034858.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.3692722371967654 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "75  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191026T033431_20191026T051601_10538_01_010302_20191101T055152.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.326  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.031e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-26 04:38:34.504000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.4141958670260557 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "76  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191026T051601_20191026T065730_10539_01_010302_20191101T074324.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.459119496855346 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "77  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191027T013354_20191027T031524_10551_01_010302_20191102T032225.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.5040431266846364 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "78  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191027T031524_20191027T045653_10552_01_010302_20191102T053727.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.443  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.865e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-27 04:19:51.157000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.649e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.865e-01 DU\n",
      "VCD_trop:  3.968e-01 DU\n",
      "SCD:  8.302e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.5489667565139262 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "79  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191027T045653_20191027T063822_10553_01_010302_20191102T071146.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.5938903863432166 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "80  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191028T011446_20191028T025616_10565_01_010302_20191103T025850.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.638814016172507 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "81  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191028T025616_20191028T043745_10566_01_010302_20191103T044812.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.139  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.958e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-28 04:01:14.292000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.6837376460017968 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "82  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191028T043745_20191028T061914_10567_01_010302_20191103T071047.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.728661275831087 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "83  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191029T005538_20191029T023708_10579_01_010302_20191104T024958.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.7735849056603774 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "84  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191029T023708_20191029T041837_10580_01_010302_20191104T042228.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.972  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.354e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-29 03:42:43.428000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.8185085354896673 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "85  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191029T041837_20191029T060007_10581_01_010302_20191104T064131.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.072  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.474e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-29 05:22:46.334000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.8634321653189576 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "86  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191030T021800_20191030T035929_10594_01_010302_20191105T040814.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.908355795148248 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "87  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191030T035929_20191030T054059_10595_01_010302_20191105T062656.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.345  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.739e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-30 05:03:46.310000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.990e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.739e-01 DU\n",
      "VCD_trop:  5.699e-01 DU\n",
      "SCD:  1.041e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "3.9532794249775383 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "88  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191030T054059_20191030T072228_10596_01_010302_20191105T081312.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "3.9982030548068286 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "89  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191031T015852_20191031T034022_10608_01_010302_20191106T040724.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.0431266846361185 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "90  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191031T034022_20191031T052151_10609_01_010302_20191106T055846.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.960  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.079e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-10-31 04:44:52.287000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.088050314465408 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "91  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191101T013945_20191101T032114_10622_01_010302_20191107T034708.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.132973944294699 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "92  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191101T032114_20191101T050244_10623_01_010302_20191107T053757.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.570  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.729e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-01 04:26:06.424000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.136e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.729e-01 DU\n",
      "VCD_trop:  8.746e-01 DU\n",
      "SCD:  1.128e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.177897574123989 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "93  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191101T050244_20191101T064413_10624_01_010302_20191107T072554.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.22282120395328 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "94  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191102T012037_20191102T030207_10636_01_010302_20191108T032137.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.26774483378257 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "95  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191102T030207_20191102T044336_10637_01_010302_20191108T051007.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.429  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.063e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-02 04:07:27.881000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.31266846361186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "96  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191103T010130_20191103T024259_10650_01_010302_20191109T025521.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.35759209344115 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "97  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191103T024259_20191103T042428_10651_01_010302_20191109T043510.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.886  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.814e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-03 03:48:54.979000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.070e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.814e-01 DU\n",
      "VCD_trop:  2.845e-01 DU\n",
      "SCD:  8.604e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.40251572327044 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "98  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191103T042428_20191103T060558_10652_01_010302_20191109T064445.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.955  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.424e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-03 05:29:09.405000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.925e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.424e-01 DU\n",
      "VCD_trop:  2.370e-01 DU\n",
      "SCD:  7.923e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.44743935309973 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "99  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191104T004222_20191104T022352_10664_01_010302_20191110T025025.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.492362982929021 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "100  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191104T022352_20191104T040521_10665_01_010302_20191110T041208.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "4.537286612758311 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "101  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191104T040521_20191104T054650_10666_01_010302_20191110T061953.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.399  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.075e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-04 05:10:07.504000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.038e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.075e+00 DU\n",
      "VCD_trop:  9.792e-01 DU\n",
      "SCD:  1.430e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.5822102425876015 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "102  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191105T020444_20191105T034614_10679_01_010302_20191111T034702.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.627133872416891 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "103  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191105T034614_20191105T052743_10680_01_010302_20191111T060032.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.332  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.521e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-05 04:51:11.325000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.911e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.521e-01 DU\n",
      "VCD_trop:  6.608e-01 DU\n",
      "SCD:  9.650e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.672057502246182 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "104  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191105T052743_20191105T070913_10681_01_010302_20191111T074555.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.716981132075472 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "105  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191106T014537_20191106T032706_10693_01_010302_20191112T033617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.761904761904762 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "106  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191106T032706_20191106T050836_10694_01_010302_20191112T054900.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.394  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.532e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-06 04:32:21.865000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.806828391734052 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "107  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191106T050836_20191106T065005_10695_01_010302_20191112T073738.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.8517520215633425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "108  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191107T012630_20191107T030759_10707_01_010302_20191113T032534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.896675651392632 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "109  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191107T030759_20191107T044929_10708_01_010302_20191113T050042.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.602  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.366e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-07 04:13:41.047000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.865e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.366e-01 DU\n",
      "VCD_trop:  4.457e-01 DU\n",
      "SCD:  7.649e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "4.941599281221923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "110  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191107T044929_20191107T063058_10709_01_010302_20191113T072351.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "4.986522911051213 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "111  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191108T010723_20191108T024852_10721_01_010302_20191114T030021.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.031446540880504 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "112  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191108T024852_20191108T043021_10722_01_010302_20191114T045355.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.568  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.686e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-08 03:55:06.950000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.576e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.686e-01 DU\n",
      "VCD_trop:  7.823e-01 DU\n",
      "SCD:  1.203e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.076370170709793 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "113  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191108T043021_20191108T061151_10723_01_010302_20191114T071243.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   46.113  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.533e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-08 05:35:32.536000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.055e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.533e-01 DU\n",
      "VCD_trop:  7.575e-01 DU\n",
      "SCD:  1.209e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.121293800539084 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "114  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191109T004815_20191109T022945_10735_01_010302_20191115T025750.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.166217430368373 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "115  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191109T022945_20191109T041114_10736_01_010302_20191115T042239.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.264  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.286e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-09 03:36:36.394000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.368e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.286e+00 DU\n",
      "VCD_trop:  1.196e+00 DU\n",
      "SCD:  1.335e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.211141060197664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "116  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191109T041114_20191109T055244_10737_01_010302_20191115T065651.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.692  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.532e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-09 05:16:28.981000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.597e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.532e-01 DU\n",
      "VCD_trop:  6.572e-01 DU\n",
      "SCD:  1.019e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.256064690026954 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "117  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191110T021038_20191110T035207_10750_01_010302_20191116T041159.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.300988319856245 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "118  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191110T035207_20191110T053337_10751_01_010302_20191116T061113.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.463  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.878e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-10 04:57:30.406000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.345911949685535 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "119  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191110T053337_20191110T071506_10752_01_010302_20191116T081121.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.3908355795148255 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "120  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191111T015131_20191111T033301_10764_01_010302_20191117T034557.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.4357592093441145 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "121  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191111T033301_20191111T051430_10765_01_010302_20191117T060021.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.985  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.069e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-11 04:38:39.029000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.480682839173405 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "122  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191111T051430_20191111T065600_10766_01_010302_20191117T075316.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.525606469002695 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "123  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191112T013224_20191112T031354_10778_01_010302_20191118T032043.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.570530098831986 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "124  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191112T031354_20191112T045523_10779_01_010302_20191118T053552.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.949  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.846e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-12 04:19:55.694000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.615453728661276 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "125  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191112T045523_20191112T063653_10780_01_010302_20191118T073812.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.660377358490567 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "126  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191113T011318_20191113T025447_10792_01_010302_20191119T030306.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.705300988319856 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "127  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191113T025447_20191113T043617_10793_01_010302_20191119T044919.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.666  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.326e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-13 04:01:18.961000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.750224618149147 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "128  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191113T043617_20191113T061746_10794_01_010302_20191119T071453.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.795148247978436 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "129  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191114T005411_20191114T023540_10806_01_010302_20191120T024054.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.840071877807727 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "130  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191114T023540_20191114T041710_10807_01_010302_20191120T044529.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.692  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.636e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-14 03:42:47.788000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.354e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.636e-01 DU\n",
      "VCD_trop:  2.656e-01 DU\n",
      "SCD:  7.396e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.884995507637017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "131  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191114T041710_20191114T055839_10808_01_010302_20191120T071942.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.701  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.728e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-14 05:22:51.295000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.054e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.728e-01 DU\n",
      "VCD_trop:  3.710e-01 DU\n",
      "SCD:  8.843e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "5.929919137466308 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "132  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191115T021634_20191115T035803_10821_01_010302_20191121T035911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "5.9748427672955975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "133  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191115T035803_20191115T053933_10822_01_010302_20191121T063612.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   46.783  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.524e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-15 05:03:50.802000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.019766397124888 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "134  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191115T053933_20191115T072103_10823_01_010302_20191121T083017.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.064690026954178 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "135  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191116T015728_20191116T033857_10835_01_010302_20191122T033741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.109613656783468 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "136  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191116T033857_20191116T052027_10836_01_010302_20191122T061529.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.542  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.303e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-16 04:44:57.029000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.004e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.303e-01 DU\n",
      "VCD_trop:  5.338e-01 DU\n",
      "SCD:  8.616e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.154537286612758 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "137  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191116T052027_20191116T070156_10837_01_010302_20191122T075154.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.199460916442049 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "138  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191117T013821_20191117T031951_10849_01_010302_20191123T032458.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.2443845462713385 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "139  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191117T031951_20191117T050120_10850_01_010302_20191123T053600.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.666  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.006e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-17 04:26:10.737000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.289308176100629 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "140  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191117T050120_20191117T064250_10851_01_010302_20191123T073542.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.334231805929918 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "141  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191118T011915_20191118T030045_10863_01_010302_20191124T032053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.379155435759209 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "142  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191118T030045_20191118T044214_10864_01_010302_20191124T050743.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.197  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.266e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-18 04:07:31.726000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.800e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.266e-01 DU\n",
      "VCD_trop:  3.411e-01 DU\n",
      "SCD:  6.563e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.424079065588499 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "143  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191118T044214_20191118T062344_10865_01_010302_20191124T071520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.46900269541779 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "144  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191119T010009_20191119T024139_10877_01_010302_20191125T024630.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.51392632524708 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "145  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191119T024139_20191119T042308_10878_01_010302_20191125T045829.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.122  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.605e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-19 03:48:58.592000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.538e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.605e-01 DU\n",
      "VCD_trop:  2.787e-01 DU\n",
      "SCD:  7.710e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.55884995507637 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "146  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191119T042308_20191119T060438_10879_01_010302_20191125T065354.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.401  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.807e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-19 05:29:13.379000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.595e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.807e-01 DU\n",
      "VCD_trop:  2.929e-01 DU\n",
      "SCD:  7.517e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.60377358490566 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "147  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191120T004103_20191120T022233_10891_01_010302_20191126T024009.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.64869721473495 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "148  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191120T022233_20191120T040402_10892_01_010302_20191126T043455.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "6.693620844564241 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "149  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191120T040402_20191120T054532_10893_01_010302_20191126T063752.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.565  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.814e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-20 05:10:11.249000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.397e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.814e-01 DU\n",
      "VCD_trop:  6.853e-01 DU\n",
      "SCD:  1.033e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.738544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "150  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191121T020327_20191121T034456_10906_01_010302_20191127T042012.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.7834681042228215 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "151  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191121T034456_20191121T052626_10907_01_010302_20191127T060224.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.010  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.924e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-21 04:51:14.718000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.828391734052111 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "152  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191121T052626_20191121T070755_10908_01_010302_20191127T075430.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.873315363881402 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "153  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191122T014421_20191122T032550_10920_01_010302_20191129T115048.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "6.918238993710692 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "154  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191122T032550_20191122T050720_10921_01_010302_20191129T114508.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.523  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.142e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-22 04:32:25.717000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.394e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.142e-01 DU\n",
      "VCD_trop:  7.348e-01 DU\n",
      "SCD:  1.025e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "6.963162623539983 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "155  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191122T050720_20191122T064850_10922_01_010302_20191129T121749.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.008086253369273 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "156  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191123T012515_20191123T030645_10934_01_010302_20191129T033721.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.053009883198562 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "157  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191123T030645_20191123T044814_10935_01_010302_20191129T051033.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.208  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.683e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-23 04:13:45.147000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.0979335130278525 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "158  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191123T044814_20191123T062944_10936_01_010302_20191129T073116.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.142857142857142 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "159  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191124T010610_20191124T024739_10948_01_010302_20191130T034004.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.187780772686433 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "160  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191124T024739_20191124T042909_10949_01_010302_20191130T045601.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.316  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.585e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-24 03:55:10.216000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.232704402515723 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "161  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191124T042909_20191124T061038_10950_01_010302_20191130T071400.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.236  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.648e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-24 05:35:36.522000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.277628032345014 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "162  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191125T004704_20191125T022834_10962_01_010302_20191201T025729.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.322551662174304 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "163  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191125T022834_20191125T041003_10963_01_010302_20191201T043651.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.032  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.928e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-25 03:36:40.564000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.3674752920035935 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "164  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191125T041003_20191125T055133_10964_01_010302_20191201T072538.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.451  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.054e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-25 05:16:32.792000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.269e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.054e-01 DU\n",
      "VCD_trop:  7.249e-01 DU\n",
      "SCD:  7.063e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.412398921832884 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "165  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191126T020929_20191126T035058_10977_01_010302_20191202T042908.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.457322551662174 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "166  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191126T035058_20191126T053228_10978_01_010302_20191202T063050.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.035  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.202e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-26 04:57:34.382000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.502246181491465 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "167  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191126T053228_20191126T071358_10979_01_010302_20191202T081849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.547169811320755 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "168  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191127T015024_20191127T033153_10991_01_010302_20191203T035125.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.592093441150046 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "169  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191127T033153_20191127T051323_10992_01_010302_20191203T060809.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.964  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.189e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-27 04:38:43.012000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.167e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.189e-01 DU\n",
      "VCD_trop:  5.369e-01 DU\n",
      "SCD:  6.797e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.637017070979335 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "170  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191127T051323_20191127T065452_10993_01_010302_20191203T074453.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.681940700808626 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "171  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191128T013118_20191128T031248_11005_01_010302_20191204T032634.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.726864330637915 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "172  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191128T031248_20191128T045418_11006_01_010302_20191204T053441.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.784  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.113e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-28 04:19:59.205000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.973e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.113e+00 DU\n",
      "VCD_trop:  1.026e+00 DU\n",
      "SCD:  1.647e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.771787960467205 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "173  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191128T045418_20191128T063547_11007_01_010302_20191204T073154.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.816711590296496 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "174  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191129T011214_20191129T025343_11019_01_010302_20191205T032959.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.861635220125786 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "175  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191129T025343_20191129T043513_11020_01_010302_20191205T052347.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.449  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.134e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-29 04:01:22.598000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.448e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.134e-01 DU\n",
      "VCD_trop:  6.382e-01 DU\n",
      "SCD:  1.038e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "7.9065588499550765 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "176  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191129T043513_20191129T061642_11021_01_010302_20191205T071527.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.951482479784366 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "177  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191130T005309_20191130T023438_11033_01_010302_20191206T030252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "7.996406109613657 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "178  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191130T023438_20191130T041608_11034_01_010302_20191206T044528.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.422  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.331e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-30 03:42:51.151000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.912e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.331e+00 DU\n",
      "VCD_trop:  2.260e+00 DU\n",
      "SCD:  1.823e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.041329739442947 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "179  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191130T041608_20191130T055738_11035_01_010302_20191206T065550.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.142  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.525e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-11-30 05:22:54.658000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.086253369272237 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "180  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191201T021534_20191201T035703_11048_01_010302_20191207T043343.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.131176999101527 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "181  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191201T035703_20191201T053833_11049_01_010302_20191207T063731.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.277  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.564e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-01 05:03:53.934000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.176100628930817 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "182  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191201T053833_20191201T072003_11050_01_010302_20191207T082431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.221024258760108 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "183  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191202T015629_20191202T033759_11062_01_010302_20191208T035316.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.265947888589398 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "184  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191202T033759_20191202T051929_11063_01_010302_20191208T061004.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.531  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.216e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-02 04:44:59.687000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.005e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.216e-01 DU\n",
      "VCD_trop:  3.241e-01 DU\n",
      "SCD:  7.979e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.310871518418688 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "185  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191202T051929_20191202T070058_11064_01_010302_20191208T080112.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.355795148247978 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "186  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191203T013725_20191203T031855_11076_01_010302_20191209T033239.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.400718778077268 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "187  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191203T031855_20191203T050024_11077_01_010302_20191209T053839.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.028  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.955e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-03 04:26:13.480000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.44564240790656 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "188  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191203T050024_20191203T064154_11078_01_010302_20191209T073648.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.49056603773585 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "189  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191204T011821_20191204T025950_11090_01_010302_20191210T031303.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.53548966756514 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "190  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191204T025950_20191204T044120_11091_01_010302_20191210T051244.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.860  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.588e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-04 04:07:34.473000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.573e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.588e-01 DU\n",
      "VCD_trop:  7.904e-01 DU\n",
      "SCD:  1.277e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.58041329739443 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "191  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191204T044120_20191204T062250_11092_01_010302_20191210T071341.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.62533692722372 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "192  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191205T005916_20191205T024046_11104_01_010302_20191211T151317.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.670260557053009 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "193  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191205T024046_20191205T042216_11105_01_010302_20191211T162407.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.135  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.562e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-05 03:49:01.827000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.157e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.562e-01 DU\n",
      "VCD_trop:  3.911e-01 DU\n",
      "SCD:  8.774e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.7151841868823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "194  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191205T042216_20191205T060345_11106_01_010302_20191211T154947.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.973  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.390e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-05 05:29:16.853000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.897e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.390e-01 DU\n",
      "VCD_trop:  3.697e-01 DU\n",
      "SCD:  8.277e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.76010781671159 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "195  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191206T004012_20191206T022142_11118_01_010302_20191212T033936.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.80503144654088 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "196  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191206T022142_20191206T040312_11119_01_010302_20191212T035826.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "8.84995507637017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "197  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191206T040312_20191206T054442_11120_01_010302_20191212T050827.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.539  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.744e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-06 05:10:14.567000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.775e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.744e-01 DU\n",
      "VCD_trop:  5.959e-01 DU\n",
      "SCD:  1.017e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.89487870619946 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "198  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191207T020238_20191207T034408_11133_01_010302_20191212T162716.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "8.939802336028752 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "199  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191207T034408_20191207T052538_11134_01_010302_20191212T170823.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.692  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.300e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-07 04:51:18.281000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "8.984725965858042 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "200  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191207T052538_20191207T070707_11135_01_010302_20191212T170922.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.029649595687331 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "201  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191208T014335_20191208T032504_11147_01_010302_20191213T133027.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.074573225516621 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "202  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191208T032504_20191208T050634_11148_01_010302_20191213T142622.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.435  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.276e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-08 04:32:29.195000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.111e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.276e+00 DU\n",
      "VCD_trop:  1.189e+00 DU\n",
      "SCD:  1.599e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.119496855345911 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "203  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191208T050634_20191208T064804_11149_01_010302_20191213T140743.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.164420485175203 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "204  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191209T012431_20191209T030601_11161_01_010302_20191214T030356.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.209344115004491 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "205  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191209T030601_20191209T044730_11162_01_010302_20191214T030448.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.887  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.308e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-09 04:13:48.270000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.254267744833783 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "206  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191209T044730_20191209T062900_11163_01_010302_20191214T031253.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.299191374663073 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "207  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191210T010528_20191210T024657_11175_01_010302_20191214T173720.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.344115004492364 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "208  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191210T024657_20191210T042827_11176_01_010302_20191214T184530.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.512  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.506e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-10 03:55:13.462000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.389038634321652 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "209  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191210T042827_20191210T060957_11177_01_010302_20191214T192113.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.999  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.041e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-10 05:35:39.649000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.433962264150944 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "210  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191211T004624_20191211T022754_11189_01_010302_20191214T225502.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.478885893980234 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "211  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191211T022754_20191211T040924_11190_01_010302_20191214T225350.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.405  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.924e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-11 03:36:42.975000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.523809523809524 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "212  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191211T040924_20191211T055053_11191_01_010302_20191214T232956.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.650  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.720e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-11 05:16:36.163000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.568733153638814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "213  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191212T020851_20191212T035021_11204_01_010302_20191215T180406.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.613656783468103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "214  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191212T035021_20191212T053150_11205_01_010302_20191215T181835.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.287  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.928e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-12 04:57:37.075000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.678e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.928e-01 DU\n",
      "VCD_trop:  6.082e-01 DU\n",
      "SCD:  9.282e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.658580413297395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "215  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191212T053150_20191212T071320_11206_01_010302_20191215T181910.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.703504043126685 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "216  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191213T014948_20191213T033118_11218_01_010302_20191216T074322.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.748427672955975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "217  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191213T033118_20191213T051247_11219_01_010302_20191216T080732.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.099  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.895e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-13 04:38:45.947000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.793351302785265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "218  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191213T051247_20191213T065417_11220_01_010302_20191216T081546.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.838274932614555 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "219  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191214T013045_20191214T031215_11232_01_010302_20191217T203952.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.883198562443846 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "220  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191214T031215_20191214T045344_11233_01_010302_20191217T202218.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   47.069  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.620e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-14 04:20:02.019000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.805e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.620e-01 DU\n",
      "VCD_trop:  5.824e-01 DU\n",
      "SCD:  1.016e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "9.928122192273134 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "221  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191214T045344_20191214T063514_11234_01_010302_20191218T132851.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "9.973045822102426 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "222  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191215T011142_20191215T025312_11246_01_010302_20191218T120403.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.017969451931716 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "223  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191215T025312_20191215T043442_11247_01_010302_20191218T122746.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.752  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.848e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-15 04:01:25.171000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.093e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.848e-01 DU\n",
      "VCD_trop:  7.085e-01 DU\n",
      "SCD:  8.194e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.062893081761008 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "224  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191215T043442_20191215T061612_11248_01_010302_20191218T124316.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.107816711590296 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "225  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191216T005240_20191216T023409_11260_01_010302_20191219T120537.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.152740341419586 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "226  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191216T023409_20191216T041539_11261_01_010302_20191219T120818.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.820  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.034e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-16 03:42:53.241000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.488e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.034e+00 DU\n",
      "VCD_trop:  9.619e-01 DU\n",
      "SCD:  8.821e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.197663971248877 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "227  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191216T041539_20191216T055709_11262_01_010302_20191219T123442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.877  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.277e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-16 05:22:57.588000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.242587601078167 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "228  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191217T021507_20191217T035637_11275_01_010302_20191219T235457.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.287511230907457 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "229  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191217T035637_20191217T053807_11276_01_010302_20191220T012442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.730  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.796e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-17 05:03:57.040000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.332434860736747 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "230  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191217T053807_20191217T071936_11277_01_010302_20191220T015552.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.377358490566039 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "231  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191218T015605_20191218T033734_11289_01_010302_20191220T131534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.422282120395328 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "232  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191218T033734_20191218T051904_11290_01_010302_20191220T132529.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.853  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.106e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-18 04:45:02.910000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.531e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.106e+00 DU\n",
      "VCD_trop:  1.026e+00 DU\n",
      "SCD:  1.551e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.467205750224618 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "233  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191218T051904_20191218T070034_11291_01_010302_20191220T134633.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.512129380053908 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "234  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191219T013702_20191219T031832_11303_01_010302_20191220T233224.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.557053009883198 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "235  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191219T031832_20191219T050002_11304_01_010302_20191221T013843.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.861  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.244e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-19 04:26:15.861000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.755e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.244e-01 DU\n",
      "VCD_trop:  4.524e-01 DU\n",
      "SCD:  7.713e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.60197663971249 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "236  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191219T050002_20191219T064132_11305_01_010302_20191221T020745.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.646900269541778 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "237  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191220T011800_20191220T025930_11317_01_010302_20191221T174817.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.69182389937107 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "238  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191220T025930_20191220T044100_11318_01_010302_20191221T195001.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.242  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.051e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-20 04:07:37.329000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.053e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.051e-01 DU\n",
      "VCD_trop:  6.240e-01 DU\n",
      "SCD:  1.067e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.73674752920036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "239  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191220T044100_20191220T062230_11319_01_010302_20191221T214006.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.781671159029651 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "240  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191221T005858_20191221T024028_11331_01_010302_20191222T171823.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.826594788858939 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "241  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191221T024028_20191221T042158_11332_01_010302_20191222T191933.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.026  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.302e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-21 03:49:04.437000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.871518418688229 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "242  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191221T042158_20191221T060328_11333_01_010302_20191222T210405.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.534  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.111e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-21 05:29:19.703000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "10.91644204851752 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "243  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191222T003957_20191222T022127_11345_01_010302_20191223T171659.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "10.96136567834681 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "244  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191222T022127_20191222T040256_11346_01_010302_20191223T190303.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "11.0062893081761 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "245  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191222T040256_20191222T054426_11347_01_010302_20191223T205939.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.645  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.982e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-22 05:10:16.971000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.241e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.982e-01 DU\n",
      "VCD_trop:  3.967e-01 DU\n",
      "SCD:  9.881e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.05121293800539 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "246  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191223T020225_20191223T034355_11360_01_010302_20191224T184351.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.096136567834682 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "247  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191223T034355_20191223T052525_11361_01_010302_20191224T204240.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.235  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.681e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-23 04:51:20.319000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.141060197663972 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "248  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191223T052525_20191223T070655_11362_01_010302_20191224T222617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.185983827493262 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "249  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191224T014324_20191224T032453_11374_01_010302_20191225T182701.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.230907457322552 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "250  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191224T032453_20191224T050623_11375_01_010302_20191225T201027.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.818  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.267e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-24 04:32:31.466000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.057e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.267e+00 DU\n",
      "VCD_trop:  1.178e+00 DU\n",
      "SCD:  1.529e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.275831087151841 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "251  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191224T050623_20191224T064753_11376_01_010302_20191225T220720.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.320754716981133 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "252  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191225T012422_20191225T030552_11388_01_010302_20191226T180227.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.365678346810421 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "253  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191225T030552_20191225T044722_11389_01_010302_20191226T194412.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.752  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.839e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-25 04:13:49.815000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.856e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.839e-01 DU\n",
      "VCD_trop:  5.001e-01 DU\n",
      "SCD:  9.025e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.410601976639713 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "254  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191225T044722_20191225T062852_11390_01_010302_20191226T214938.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.455525606469003 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "255  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191226T010521_20191226T024651_11402_01_010302_20191227T174059.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.500449236298294 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "256  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191226T024651_20191226T042821_11403_01_010302_20191227T193741.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.963  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.625e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-26 03:55:15.243000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.545372866127583 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "257  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191226T042821_20191226T060951_11404_01_010302_20191227T210937.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.419  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [20.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.020e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-26 05:35:41.430000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.590296495956872 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "258  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191227T004620_20191227T022750_11416_01_010302_20191228T165321.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.635220125786164 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "259  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191227T022750_20191227T040920_11417_01_010302_20191228T190223.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.623  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.688e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-27 03:36:45.106000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.743e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.688e-01 DU\n",
      "VCD_trop:  5.956e-01 DU\n",
      "SCD:  1.221e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.680143755615454 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "260  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191227T040920_20191227T055049_11418_01_010302_20191228T211118.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.884  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.040e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-27 05:16:37.813000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.208e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.040e-01 DU\n",
      "VCD_trop:  8.281e-01 DU\n",
      "SCD:  1.348e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.725067385444744 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "261  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191228T020849_20191228T035019_11431_01_010302_20191229T190633.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.769991015274034 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "262  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191228T035019_20191228T053149_11432_01_010302_20191229T203726.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.203  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.876e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-28 04:57:39.438000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.824e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.876e-01 DU\n",
      "VCD_trop:  5.211e-01 DU\n",
      "SCD:  9.197e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.814914645103325 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "263  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191228T053149_20191228T071319_11433_01_010302_20191229T222155.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.859838274932615 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "264  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191229T014948_20191229T033118_11445_01_010302_20191230T183957.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.904761904761903 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "265  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191229T033118_20191229T051248_11446_01_010302_20191230T203027.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.481  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.278e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-29 04:38:47.462000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "11.949685534591195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "266  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191229T051248_20191229T065418_11447_01_010302_20191231T101320.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "11.994609164420485 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "267  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191230T013047_20191230T031217_11459_01_010302_20191231T181440.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.039532794249777 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "268  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191230T031217_20191230T045347_11460_01_010302_20191231T201517.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.830  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.088e+00\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-30 04:20:04.005000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.084456424079065 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "269  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191230T045347_20191230T063517_11461_01_010302_20191231T220300.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.129380053908356 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "270  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191231T011147_20191231T025317_11473_01_010302_20200101T180133.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.174303683737646 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "271  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191231T025317_20191231T043447_11474_01_010302_20200101T192226.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.334  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.988e-01\n",
      "\n",
      "Average time of the collocated pixels:  2019-12-31 04:01:27.027000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.591e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.988e-01 DU\n",
      "VCD_trop:  3.157e-01 DU\n",
      "SCD:  7.210e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.219227313566936 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "272  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20191231T043447_20191231T061617_11475_01_010302_20200101T212406.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.264150943396226 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "273  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200101T005246_20200101T023416_11487_01_010302_20200102T172632.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.309074573225516 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "274  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200101T023416_20200101T041546_11488_01_010302_20200102T190100.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.406  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.399e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-01 03:42:55.087000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.353998203054807 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "275  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200101T041546_20200101T055716_11489_01_010302_20200102T210644.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.482  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.539e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-01 05:22:59.554000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.398921832884097 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "276  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200102T021516_20200102T035646_11502_01_010302_20200103T185333.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.443845462713387 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "277  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200102T035646_20200102T053816_11503_01_010302_20200103T204218.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.957  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.777e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-02 05:03:58.693000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.488769092542677 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "278  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200102T053816_20200102T071946_11504_01_010302_20200103T224933.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.533692722371967 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "279  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200103T015616_20200103T033746_11516_01_010302_20200104T184932.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.578616352201259 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "280  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200103T033746_20200103T051916_11517_01_010302_20200104T202744.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.682  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.912e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-03 04:45:04.312000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.986e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.912e-01 DU\n",
      "VCD_trop:  9.094e-01 DU\n",
      "SCD:  1.219e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.623539982030549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "281  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200103T051916_20200103T070046_11518_01_010302_20200104T220510.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.668463611859837 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "282  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200104T013716_20200104T031846_11530_01_010302_20200105T180734.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.713387241689128 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "283  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200104T031846_20200104T050016_11531_01_010302_20200105T201841.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.930  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.499e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-04 04:26:17.852000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.195e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.499e-01 DU\n",
      "VCD_trop:  8.687e-01 DU\n",
      "SCD:  1.328e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.758310871518418 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "284  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200104T050016_20200104T064146_11532_01_010302_20200105T214948.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.80323450134771 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "285  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200105T011816_20200105T025946_11544_01_010302_20200106T174442.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.848158131176998 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "286  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200105T025946_20200105T044116_11545_01_010302_20200106T195553.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.203  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.503e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-05 04:07:39.313000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.233e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.503e+00 DU\n",
      "VCD_trop:  1.431e+00 DU\n",
      "SCD:  1.243e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "12.89308176100629 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "287  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200105T044116_20200105T062246_11546_01_010302_20200106T211920.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.93800539083558 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "288  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200106T005916_20200106T024046_11558_01_010302_20200107T172348.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "12.98292902066487 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "289  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200106T024046_20200106T042216_11559_01_010302_20200107T194240.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.152  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.781e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-06 03:49:05.934000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.02785265049416 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "290  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200106T042216_20200106T060346_11560_01_010302_20200107T205700.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.814  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.231e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-06 05:29:21.200000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.07277628032345 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "291  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200107T004017_20200107T022147_11572_01_010302_20200108T165659.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.11769991015274 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "292  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200107T022147_20200107T040317_11573_01_010302_20200108T190403.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "13.162623539982029 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "293  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200107T040317_20200107T054447_11574_01_010302_20200108T204658.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.844  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.408e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-07 05:10:19.021000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.20754716981132 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "294  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200108T020247_20200108T034417_11587_01_010302_20200109T183731.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.252470799640612 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "295  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200108T034417_20200108T052547_11588_01_010302_20200109T204748.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.197  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.662e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-08 04:51:22.240000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.2973944294699 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "296  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200108T052547_20200108T070717_11589_01_010302_20200109T224244.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.34231805929919 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "297  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200109T014348_20200109T032518_11601_01_010302_20200110T183009.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.387241689128482 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "298  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200109T032518_20200109T050648_11602_01_010302_20200110T200853.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.429  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.349e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-09 04:32:33.497000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.132e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.349e-01 DU\n",
      "VCD_trop:  3.507e-01 DU\n",
      "SCD:  7.529e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.432165318957773 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "299  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200109T050648_20200109T064818_11603_01_010302_20200110T220632.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.477088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "300  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200110T012449_20200110T030619_11615_01_010302_20200111T174330.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.522012578616351 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "301  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200110T030619_20200110T044749_11616_01_010302_20200111T195139.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.632  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.746e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-10 04:13:51.713000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.445e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.746e+00 DU\n",
      "VCD_trop:  1.658e+00 DU\n",
      "SCD:  1.888e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.566936208445643 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "302  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200110T044749_20200110T062919_11617_01_010302_20200111T214721.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.611859838274935 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "303  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200111T010550_20200111T024720_11629_01_010302_20200114T184118.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.656783468104223 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "304  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200111T024720_20200111T042850_11630_01_010302_20200114T190511.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.322  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.702e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-11 03:55:16.529000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.131e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.702e-01 DU\n",
      "VCD_trop:  6.848e-01 DU\n",
      "SCD:  1.445e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.701707097933513 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "305  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200111T042850_20200111T061020_11631_01_010302_20200114T194141.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.897  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.810e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-11 05:35:43.554000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.141e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.810e-01 DU\n",
      "VCD_trop:  5.846e-01 DU\n",
      "SCD:  1.353e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.746630727762804 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "306  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200112T004651_20200112T022821_11643_01_010302_20200114T190329.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.791554357592092 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "307  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200112T022821_20200112T040951_11644_01_010302_20200114T192251.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.994  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.926e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-12 03:36:46.504000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.848e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.926e-01 DU\n",
      "VCD_trop:  3.945e-01 DU\n",
      "SCD:  1.127e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.836477987421384 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "308  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200112T040951_20200112T055121_11645_01_010302_20200115T055136.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.504  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.041e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-12 05:16:39.930000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.160e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.041e-01 DU\n",
      "VCD_trop:  2.976e-01 DU\n",
      "SCD:  8.170e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.881401617250674 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "309  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200113T020922_20200113T035052_11658_01_010302_20200116T164808.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "13.926325247079966 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "310  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200113T035052_20200113T053222_11659_01_010302_20200116T182720.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.881  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.938e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-13 04:57:40.865000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.639e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.938e-01 DU\n",
      "VCD_trop:  6.020e-01 DU\n",
      "SCD:  9.410e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "13.971248876909254 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "311  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200113T053222_20200113T071352_11660_01_010302_20200116T195205.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.016172506738545 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "312  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200114T015023_20200114T033153_11672_01_010302_20200117T102423.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.061096136567835 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "313  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200114T033153_20200114T051323_11673_01_010302_20200117T120530.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.669  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.719e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-14 04:38:48.760000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.136e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.719e-01 DU\n",
      "VCD_trop:  8.817e-01 DU\n",
      "SCD:  1.553e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.106019766397123 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "314  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200114T051323_20200114T065453_11674_01_010302_20200117T124741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.150943396226415 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "315  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200115T013124_20200115T031254_11686_01_010302_20200118T200320.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.195867026055705 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "316  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200115T031254_20200115T045424_11687_01_010302_20200118T213600.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.197  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.739e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-15 04:20:05.172000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.260e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.739e-01 DU\n",
      "VCD_trop:  5.886e-01 DU\n",
      "SCD:  9.600e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.240790655884997 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "317  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200115T045424_20200115T063555_11688_01_010302_20200118T232024.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.285714285714285 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "318  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200116T011226_20200116T025356_11700_01_010302_20200119T143402.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.330637915543576 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "319  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200116T025356_20200116T043526_11701_01_010302_20200119T152310.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.477  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.711e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-16 04:01:28.543000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.858e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.711e-01 DU\n",
      "VCD_trop:  7.916e-01 DU\n",
      "SCD:  1.290e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.375561545372866 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "320  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200116T043526_20200116T061656_11702_01_010302_20200119T235033.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.420485175202154 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "321  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200117T005327_20200117T023458_11714_01_010302_20200120T155821.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.465408805031446 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "322  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200117T023458_20200117T041628_11715_01_010302_20200120T155848.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.136  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.407e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-17 03:42:56.833000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.667e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.407e+00 DU\n",
      "VCD_trop:  2.324e+00 DU\n",
      "SCD:  1.763e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.510332434860738 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "323  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200117T041628_20200117T055758_11716_01_010302_20200120T175224.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.618  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.415e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-17 05:23:01.179000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.863e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.415e+00 DU\n",
      "VCD_trop:  2.324e+00 DU\n",
      "SCD:  2.441e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.555256064690028 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "324  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200118T021559_20200118T035729_11729_01_010302_20200121T223919.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.600179694519316 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "325  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200118T035729_20200118T053859_11730_01_010302_20200121T230957.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.388  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.141e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-18 05:04:00.551000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.337e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.141e-01 DU\n",
      "VCD_trop:  7.154e-01 DU\n",
      "SCD:  1.155e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.645103324348607 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "326  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200118T053859_20200118T072030_11731_01_010302_20200122T001203.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.690026954177899 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "327  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200119T015701_20200119T033831_11743_01_010302_20200124T141416.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.734950584007187 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "328  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200119T052001_20200119T070131_11745_01_010302_20200124T143033.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.779874213836477 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "329  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200120T013803_20200120T031933_11757_01_010302_20200124T144006.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.824797843665769 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "330  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200120T031933_20200120T050103_11758_01_010302_20200124T145022.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.382  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.894e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-20 04:26:19.096000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.597e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.894e-01 DU\n",
      "VCD_trop:  4.071e-01 DU\n",
      "SCD:  8.221e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "14.86972147349506 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "331  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200120T050103_20200120T064233_11759_01_010302_20200124T151027.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.914645103324348 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "332  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200121T011905_20200121T030035_11771_01_010302_20200125T065103.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "14.959568733153638 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "333  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200121T030035_20200121T044205_11772_01_010302_20200125T074338.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.790  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.626e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-21 04:07:40.425000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.360e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.626e+00 DU\n",
      "VCD_trop:  1.541e+00 DU\n",
      "SCD:  2.080e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.00449236298293 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "334  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200121T044205_20200121T062335_11773_01_010302_20200125T094210.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.049415992812218 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "335  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200122T010007_20200122T024137_11785_01_010302_20200125T192632.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.09433962264151 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "336  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200122T024137_20200122T042307_11786_01_010302_20200125T195814.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.493  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.359e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-22 03:49:06.913000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.1392632524708 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "337  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200122T042307_20200122T060437_11787_01_010302_20200125T205900.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.765  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.209e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-22 05:29:22.498000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.862e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.209e+00 DU\n",
      "VCD_trop:  1.115e+00 DU\n",
      "SCD:  9.618e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.184186882300091 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "338  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200123T004109_20200123T022240_11799_01_010302_20200126T123552.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.22911051212938 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "339  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200123T022240_20200123T040410_11800_01_010302_20200126T123433.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "15.27403414195867 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "340  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200123T040410_20200123T054540_11801_01_010302_20200126T130416.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.703  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.055e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-23 05:10:19.824000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.716e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.055e-01 DU\n",
      "VCD_trop:  5.071e-01 DU\n",
      "SCD:  1.008e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.31895777178796 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "341  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200124T020342_20200124T034512_11814_01_010302_20200127T121535.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.363881401617252 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "342  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200124T034512_20200124T052642_11815_01_010302_20200127T121751.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.272  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.390e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-24 04:51:23.179000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.40880503144654 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "343  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200124T052642_20200124T070812_11816_01_010302_20200127T123829.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.45372866127583 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "344  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200125T014444_20200125T032614_11828_01_010302_20200128T114227.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.498652291105122 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "345  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200125T032614_20200125T050745_11829_01_010302_20200128T115938.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.713  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.887e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-25 04:32:33.821000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.54357592093441 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "346  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200125T050745_20200125T064915_11830_01_010302_20200128T120654.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.588499550763702 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "347  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200126T012547_20200126T030717_11842_01_010302_20200129T055912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.633423180592992 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "348  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200126T030717_20200126T044847_11843_01_010302_20200129T072752.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.789  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.695e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-26 04:13:52.863000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.796e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.695e-01 DU\n",
      "VCD_trop:  2.873e-01 DU\n",
      "SCD:  5.917e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.678346810422283 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "349  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200126T044847_20200126T063017_11844_01_010302_20200129T100027.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.723270440251572 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "350  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200127T010650_20200127T024820_11856_01_010302_20200130T054252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.768194070080863 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "351  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200127T024820_20200127T042950_11857_01_010302_20200130T071233.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.248  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.259e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-27 03:55:17.903000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.813117699910153 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "352  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200127T042950_20200127T061120_11858_01_010302_20200130T095259.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.188  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.906e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-27 05:35:44.087000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.858041329739441 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "353  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200128T004752_20200128T022922_11870_01_010302_20200131T052020.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "15.902964959568733 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "354  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200128T022922_20200128T041053_11871_01_010302_20200131T065319.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.107  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.402e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-28 03:36:47.381000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.947888589398024 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "355  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200128T041053_20200128T055223_11872_01_010302_20200131T090229.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.278  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.997e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-28 05:16:40.926000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "15.992812219227314 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "356  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200129T021025_20200129T035155_11885_01_010302_20200201T063104.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.037735849056602 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "357  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200129T035155_20200129T053326_11886_01_010302_20200201T083146.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.963  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.996e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-29 04:57:42.085000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.082659478885894 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "358  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200129T053326_20200129T071456_11887_01_010302_20200201T105532.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.127583108715186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "359  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200130T015128_20200130T033258_11899_01_010302_20200202T055734.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.172506738544474 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "360  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200130T033258_20200130T051429_11900_01_010302_20200203T094055.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.694  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.657e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-30 04:38:49.845000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.994e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.657e-01 DU\n",
      "VCD_trop:  6.846e-01 DU\n",
      "SCD:  8.377e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.217430368373766 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "361  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200130T051429_20200130T065559_11901_01_010302_20200203T094737.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.262353998203054 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "362  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200131T013231_20200131T031401_11913_01_010302_20200203T090301.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.307277628032345 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "363  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200131T031401_20200131T045532_11914_01_010302_20200203T100512.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.626  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.088e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-01-31 04:20:05.524000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.038e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.088e+00 DU\n",
      "VCD_trop:  1.008e+00 DU\n",
      "SCD:  1.314e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.352201257861633 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "364  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200131T045532_20200131T063702_11915_01_010302_20200203T144340.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.397124887690925 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "365  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200201T011334_20200201T025505_11927_01_010302_20200204T052911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.442048517520217 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "366  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200201T025505_20200201T043635_11928_01_010302_20200204T075121.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.637  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.233e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-01 04:01:29.121000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.486972147349505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "367  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200201T043635_20200201T061805_11929_01_010302_20200204T093025.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.531895777178796 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "368  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200202T005438_20200202T023608_11941_01_010302_20200205T051303.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.576819407008088 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "369  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200202T023608_20200202T041738_11942_01_010302_20200205T070914.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.105  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.230e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-02 03:42:57.159000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.621743036837376 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "370  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200202T041738_20200202T055908_11943_01_010302_20200205T090941.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.614  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.334e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-02 05:23:01.263000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.666666666666664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "371  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200203T021711_20200203T035841_11956_01_010302_20200206T065200.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.711590296495956 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "372  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200203T035841_20200203T054012_11957_01_010302_20200206T083717.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.938  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.192e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-03 05:04:01.221000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.542e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.192e-01 DU\n",
      "VCD_trop:  4.187e-01 DU\n",
      "SCD:  8.508e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.756513926325248 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "373  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200203T054012_20200203T072142_11958_01_010302_20200206T104847.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.801437556154536 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "374  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200204T015815_20200204T033945_11970_01_010302_20200207T061537.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.846361185983827 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "375  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200204T033945_20200204T052115_11971_01_010302_20200207T082414.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.964  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.437e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-04 04:45:06.938000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "16.89128481581312 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "376  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200204T052115_20200204T070245_11972_01_010302_20200207T104043.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.936208445642407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "377  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200205T013918_20200205T032048_11984_01_010302_20200208T060451.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "16.9811320754717 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "378  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200205T032048_20200205T050218_11985_01_010302_20200208T081025.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.358  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.063e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-05 04:26:19.736000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.755e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.063e-01 DU\n",
      "VCD_trop:  3.190e-01 DU\n",
      "SCD:  6.832e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.026055705300987 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "379  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200205T050218_20200205T064349_11986_01_010302_20200208T100004.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.07097933513028 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "380  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200206T012021_20200206T030152_11998_01_010302_20200209T053114.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.11590296495957 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "381  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200206T030152_20200206T044322_11999_01_010302_20200209T073747.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.140  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.995e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-06 04:07:40.603000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.149e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.995e-01 DU\n",
      "VCD_trop:  8.204e-01 DU\n",
      "SCD:  1.333e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.16082659478886 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "382  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200206T044322_20200206T062452_12000_01_010302_20200209T095438.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.20575022461815 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "383  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200207T010125_20200207T024255_12012_01_010302_20200210T052657.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.25067385444744 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "384  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200207T024255_20200207T042425_12013_01_010302_20200210T071942.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.647  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.240e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-07 03:49:07.201000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.29559748427673 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "385  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200207T042425_20200207T060556_12014_01_010302_20200210T093625.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.477  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.316e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-07 05:29:23.185000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.161e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.316e-01 DU\n",
      "VCD_trop:  3.471e-01 DU\n",
      "SCD:  8.805e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.340521114106018 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "386  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200208T004229_20200208T022359_12026_01_010302_20200211T050019.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.38544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "387  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200208T022359_20200208T040529_12027_01_010302_20200211T065850.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "17.4303683737646 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "388  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200208T040529_20200208T054659_12028_01_010302_20200211T085356.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.227  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.236e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-08 05:10:20.622000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.168e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.236e-01 DU\n",
      "VCD_trop:  2.294e-01 DU\n",
      "SCD:  6.002e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.47529200359389 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "389  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200209T020503_20200209T034633_12041_01_010302_20200212T070527.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.52021563342318 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "390  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200209T034633_20200209T052803_12042_01_010302_20200212T083643.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.903  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.537e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-09 04:51:23.699000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.482e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.537e-01 DU\n",
      "VCD_trop:  3.596e-01 DU\n",
      "SCD:  7.105e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.565139263252473 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "391  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200209T052803_20200209T070934_12043_01_010302_20200212T100400.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.61006289308176 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "392  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200210T014607_20200210T032737_12055_01_010302_20200213T062014.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.654986522911052 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "393  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200210T032737_20200210T050907_12056_01_010302_20200213T083425.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.928  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.562e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-10 04:32:34.215000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.737e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.562e-01 DU\n",
      "VCD_trop:  6.594e-01 DU\n",
      "SCD:  1.097e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.69991015274034 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "394  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200210T050907_20200210T065037_12057_01_010302_20200213T100010.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.744833782569632 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "395  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200211T012711_20200211T030841_12069_01_010302_20200214T055358.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.78975741239892 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "396  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200211T030841_20200211T045011_12070_01_010302_20200214T075345.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.664  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.108e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-11 04:13:52.650000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.637e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.108e-01 DU\n",
      "VCD_trop:  7.192e-01 DU\n",
      "SCD:  1.185e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.834681042228212 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "397  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200211T045011_20200211T063141_12071_01_010302_20200214T095211.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.879604672057503 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "398  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200212T010815_20200212T024945_12083_01_010302_20200215T054541.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "17.92452830188679 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "399  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200212T024945_20200212T043115_12084_01_010302_20200215T073556.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.368  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.330e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-12 03:55:18.284000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "17.969451931716083 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "400  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200212T043115_20200212T061245_12085_01_010302_20200215T094004.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.529  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.914e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-12 05:35:44.708000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.014375561545375 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "401  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200213T004919_20200213T023049_12097_01_010302_20200216T054047.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.059299191374663 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "402  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200213T023049_20200213T041219_12098_01_010302_20200216T072512.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.531  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.646e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-13 03:36:47.758000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.10422282120395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "403  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200213T041219_20200213T055349_12099_01_010302_20200216T091909.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.729  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.022e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-13 05:16:41.183000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.149146451033243 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "404  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200214T021153_20200214T035323_12112_01_010302_20200217T070220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.194070080862534 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "405  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200214T035323_20200214T053454_12113_01_010302_20200217T083559.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.686  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.193e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-14 04:57:41.857000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.001e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.193e+00 DU\n",
      "VCD_trop:  1.097e+00 DU\n",
      "SCD:  1.503e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.238993710691823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "406  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200214T053454_20200214T071624_12114_01_010302_20200217T101718.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.283917340521114 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "407  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200215T015257_20200215T033427_12126_01_010302_20200218T062457.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.328840970350406 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "408  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200215T033427_20200215T051558_12127_01_010302_20200218T082522.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.358  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.129e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-15 04:38:50.091000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.373764600179694 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "409  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200215T051558_20200215T065728_12128_01_010302_20200218T101642.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.418688230008982 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "410  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200216T013401_20200216T031532_12140_01_010302_20200219T060233.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.463611859838274 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "411  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200216T031532_20200216T045702_12141_01_010302_20200219T075622.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.497  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.507e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-16 04:20:05.882000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.508535489667565 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "412  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200216T045702_20200216T063832_12142_01_010302_20200219T100810.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.553459119496853 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "413  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200217T011506_20200217T025636_12154_01_010302_20200220T055534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.598382749326145 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "414  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200217T025636_20200217T043806_12155_01_010302_20200220T073950.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.629  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.716e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-17 04:01:28.994000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.643306379155437 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "415  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200217T043806_20200217T061937_12156_01_010302_20200220T092741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.68823000898473 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "416  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200218T005610_20200218T023740_12168_01_010302_20200221T053651.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.733153638814017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "417  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200218T023740_20200218T041911_12169_01_010302_20200221T073456.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.076  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.993e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-18 03:42:57.504000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.757e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.993e-01 DU\n",
      "VCD_trop:  6.081e-01 DU\n",
      "SCD:  1.180e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.778077268643305 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "418  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200218T041911_20200218T060041_12170_01_010302_20200221T092253.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.049  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.919e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-18 05:23:01.848000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.134e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.919e-01 DU\n",
      "VCD_trop:  6.944e-01 DU\n",
      "SCD:  1.156e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.823000898472596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "419  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200219T021845_20200219T040015_12183_01_010302_20200222T071449.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.867924528301888 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "420  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200219T040015_20200219T054145_12184_01_010302_20200222T085044.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.833  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.060e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-19 05:04:01.199000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.998e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.060e+00 DU\n",
      "VCD_trop:  9.559e-01 DU\n",
      "SCD:  9.185e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "18.912848158131176 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "421  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200219T054145_20200219T072316_12185_01_010302_20200222T102445.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "18.957771787960468 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "422  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200220T015949_20200220T034120_12197_01_010302_20200223T063138.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.00269541778976 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "423  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200220T034120_20200220T052250_12198_01_010302_20200223T083902.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.111  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.326e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-20 04:45:06.189000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.191e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.326e+00 DU\n",
      "VCD_trop:  1.214e+00 DU\n",
      "SCD:  1.758e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.047619047619047 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "424  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200220T052250_20200220T070420_12199_01_010302_20200223T100534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.09254267744834 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "425  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200221T014054_20200221T032224_12211_01_010302_20200224T060128.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.137466307277627 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "426  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200221T032224_20200221T050354_12212_01_010302_20200224T080314.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.358  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.016e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-21 04:26:19.580000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.544e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.016e-01 DU\n",
      "VCD_trop:  6.044e-01 DU\n",
      "SCD:  6.886e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.18238993710692 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "427  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200221T050354_20200221T064525_12213_01_010302_20200224T094812.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.227313566936207 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "428  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200222T012158_20200222T030329_12225_01_010302_20200225T055347.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.2722371967655 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "429  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200222T030329_20200222T044459_12226_01_010302_20200225T073734.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.891  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.650e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-22 04:07:40.169000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.31716082659479 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "430  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200222T044459_20200222T062629_12227_01_010302_20200225T095131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.36208445642408 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "431  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200223T010303_20200223T024433_12239_01_010302_20200226T053347.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.40700808625337 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "432  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200223T024433_20200223T042604_12240_01_010302_20200226T070658.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.087  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.571e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-23 03:49:07.598000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.213e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.571e-01 DU\n",
      "VCD_trop:  3.610e-01 DU\n",
      "SCD:  8.336e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.45193171608266 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "433  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200223T042604_20200223T060734_12241_01_010302_20200226T091444.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.879  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.050e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-23 05:29:23.102000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.786e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.050e-01 DU\n",
      "VCD_trop:  3.031e-01 DU\n",
      "SCD:  7.484e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.49685534591195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "434  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200224T004408_20200224T022538_12253_01_010302_20200227T051242.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.541778975741238 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "435  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200224T022538_20200224T040708_12254_01_010302_20200227T065339.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "19.58670260557053 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "436  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200224T040708_20200224T054839_12255_01_010302_20200227T090230.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.101  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.628e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-24 05:10:20.289000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.63162623539982 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "437  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200225T020643_20200225T034813_12268_01_010302_20200228T063921.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.67654986522911 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "438  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200225T034813_20200225T052943_12269_01_010302_20200228T084354.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.708  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.472e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-25 04:51:23.597000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.7214734950584 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "439  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200225T052943_20200225T071114_12270_01_010302_20200228T105145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.766397124887693 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "440  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200226T014748_20200226T032918_12282_01_010302_20200229T060308.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.81132075471698 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "441  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200226T032918_20200226T051048_12283_01_010302_20200229T080805.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.657  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.641e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-26 04:32:34.586000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.85624438454627 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "442  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200226T051048_20200226T065218_12284_01_010302_20200229T101407.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.90116801437556 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "443  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200227T012852_20200227T031023_12296_01_010302_20200301T054554.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "19.946091644204852 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "444  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200227T031023_20200227T045153_12297_01_010302_20200301T075540.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.217  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.474e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-27 04:13:53.010000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.084e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.474e-01 DU\n",
      "VCD_trop:  6.712e-01 DU\n",
      "SCD:  1.138e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "19.99101527403414 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "445  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200227T045153_20200227T063323_12298_01_010302_20200301T100455.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.035938903863432 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "446  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200228T010957_20200228T025127_12310_01_010302_20200302T053049.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.080862533692724 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "447  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200228T025127_20200228T043258_12311_01_010302_20200302T072238.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.028  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.338e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-28 03:55:18.034000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.125786163522015 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "448  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200228T043258_20200228T061428_12312_01_010302_20200302T084338.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.492  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.189e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-28 05:35:44.456000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.170709793351303 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "449  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200229T005102_20200229T023232_12324_01_010302_20200303T052743.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.21563342318059 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "450  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200229T023232_20200229T041403_12325_01_010302_20200303T071153.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.053  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.363e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-29 03:36:47.255000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.961e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.363e-01 DU\n",
      "VCD_trop:  5.502e-01 DU\n",
      "SCD:  1.231e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.260557053009883 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "451  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200229T041403_20200229T055533_12326_01_010302_20200303T091016.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.362  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.598e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-02-29 05:16:41.039000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.045e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.598e-01 DU\n",
      "VCD_trop:  5.676e-01 DU\n",
      "SCD:  1.050e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.30548068283917 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "452  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200301T021337_20200301T035508_12339_01_010302_20200304T064300.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.350404312668463 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "453  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200301T035508_20200301T053638_12340_01_010302_20200304T083242.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.773  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.161e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-01 04:57:41.702000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.395327942497754 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "454  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200301T053638_20200301T071808_12341_01_010302_20200304T104828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.440251572327046 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "455  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200302T015442_20200302T033613_12353_01_010302_20200305T061540.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.485175202156334 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "456  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200302T033613_20200302T051743_12354_01_010302_20200305T080933.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.138  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.847e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-02 04:38:50.164000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.452e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.847e-01 DU\n",
      "VCD_trop:  3.762e-01 DU\n",
      "SCD:  7.574e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.530098831985626 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "457  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200302T051743_20200302T065913_12355_01_010302_20200305T102836.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.575022461814914 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "458  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200303T013547_20200303T031717_12367_01_010302_20200306T053815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.619946091644206 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "459  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200303T031717_20200303T045848_12368_01_010302_20200306T075000.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.886  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.090e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-03 04:20:05.227000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.664869721473494 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "460  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200303T045848_20200303T064018_12369_01_010302_20200306T095312.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.709793351302785 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "461  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200304T011652_20200304T025822_12381_01_010302_20200307T052800.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.754716981132077 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "462  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200304T025822_20200304T043953_12382_01_010302_20200307T073149.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.620  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.194e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-04 04:01:28.688000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.799640610961365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "463  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200304T043953_20200304T062123_12383_01_010302_20200307T092710.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.844564240790657 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "464  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200305T005757_20200305T023927_12395_01_010302_20200308T053249.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "20.889487870619945 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "465  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200305T023927_20200305T042058_12396_01_010302_20200308T070645.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.463  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.015e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-05 03:42:57.189000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.199e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.015e-01 DU\n",
      "VCD_trop:  5.029e-01 DU\n",
      "SCD:  1.040e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.934411500449237 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "466  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200305T042058_20200305T060228_12397_01_010302_20200308T092936.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.564  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.907e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-05 05:23:01.292000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.632e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.907e-01 DU\n",
      "VCD_trop:  5.892e-01 DU\n",
      "SCD:  1.028e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "20.979335130278525 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "467  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200306T022033_20200306T040203_12410_01_010302_20200309T065302.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.024258760107816 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "468  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200306T040203_20200306T054333_12411_01_010302_20200309T085019.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.827  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.608e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-06 05:04:00.753000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.234e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.608e+00 DU\n",
      "VCD_trop:  1.497e+00 DU\n",
      "SCD:  1.550e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.069182389937108 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "469  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200306T054333_20200306T072504_12412_01_010302_20200309T102828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.114106019766396 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "470  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200307T020138_20200307T034308_12424_01_010302_20200310T062211.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.159029649595688 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "471  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200307T034308_20200307T052438_12425_01_010302_20200310T084433.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.297  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.384e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-07 04:45:05.891000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.235e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.384e+00 DU\n",
      "VCD_trop:  1.263e+00 DU\n",
      "SCD:  1.480e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.20395327942498 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "472  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200307T052438_20200307T070609_12426_01_010302_20200310T095955.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.248876909254268 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "473  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200308T014243_20200308T032413_12438_01_010302_20200312T100257.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.293800539083556 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "474  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200308T032413_20200308T050543_12439_01_010302_20200312T101811.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.147  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.461e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-08 04:26:19.268000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.284e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.461e+00 DU\n",
      "VCD_trop:  1.348e+00 DU\n",
      "SCD:  1.829e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.338724168912847 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "475  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200308T050543_20200308T064714_12440_01_010302_20200312T101838.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.38364779874214 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "476  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200309T012348_20200309T030518_12452_01_010302_20200312T162002.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.428571428571427 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "477  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200309T030518_20200309T044649_12453_01_010302_20200312T161844.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.114  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.683e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-09 04:07:39.965000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.47349505840072 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "478  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200309T044649_20200309T062819_12454_01_010302_20200312T170607.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.51841868823001 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "479  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200310T010453_20200310T024623_12466_01_010302_20200313T051432.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.563342318059302 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "480  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200310T024623_20200310T042754_12467_01_010302_20200313T070527.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.361  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.449e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-10 03:49:06.101000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.60826594788859 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "481  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200310T042754_20200310T060924_12468_01_010302_20200313T092310.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.083  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.778e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-10 05:29:21.964000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.653189577717878 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "482  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200311T004558_20200311T022729_12480_01_010302_20200314T051626.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.69811320754717 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "483  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200311T022729_20200311T040859_12481_01_010302_20200314T064259.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "21.743036837376458 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "484  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200311T040859_20200311T055029_12482_01_010302_20200314T090924.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.805  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.587e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-11 05:10:19.860000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.340e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.587e-01 DU\n",
      "VCD_trop:  2.340e-01 DU\n",
      "SCD:  6.418e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.78796046720575 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "485  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200312T020834_20200312T035004_12495_01_010302_20200315T063558.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.83288409703504 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "486  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200312T035004_20200312T053134_12496_01_010302_20200315T082635.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.237  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.486e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-12 04:51:22.555000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.558e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.486e-01 DU\n",
      "VCD_trop:  2.367e-01 DU\n",
      "SCD:  5.584e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "21.877807726864333 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "487  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200312T053134_20200312T071305_12497_01_010302_20200315T102319.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.92273135669362 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "488  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200313T014939_20200313T033109_12509_01_010302_20200316T062218.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "21.96765498652291 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "489  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200313T033109_20200313T051240_12510_01_010302_20200316T081004.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.683  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.798e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-13 04:32:33.129000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.911e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.798e-01 DU\n",
      "VCD_trop:  1.587e-01 DU\n",
      "SCD:  4.751e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.0125786163522 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "490  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200313T051240_20200313T065410_12511_01_010302_20200316T100122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.05750224618149 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "491  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200314T013044_20200314T031214_12523_01_010302_20200317T053847.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.10242587601078 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "492  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200314T031214_20200314T045345_12524_01_010302_20200317T074717.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.448  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.770e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-14 04:13:51.662000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.520e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.770e-01 DU\n",
      "VCD_trop:  3.490e-01 DU\n",
      "SCD:  7.767e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.147349505840072 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "493  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200314T045345_20200314T063515_12525_01_010302_20200317T100540.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.192273135669364 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "494  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200315T011149_20200315T025320_12537_01_010302_20200318T052630.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.237196765498652 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "495  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200315T025320_20200315T043450_12538_01_010302_20200318T072210.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.598  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.213e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-15 03:55:16.916000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.282120395327944 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "496  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200315T043450_20200315T061620_12539_01_010302_20200318T092717.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   48.447  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.692e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-15 05:35:43.578000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.32704402515723 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "497  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200316T005255_20200316T023425_12551_01_010302_20200319T052318.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.371967654986523 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "498  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200316T023425_20200316T041555_12552_01_010302_20200319T070923.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.129  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.427e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-16 03:36:46.368000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.957e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.427e-01 DU\n",
      "VCD_trop:  8.269e-01 DU\n",
      "SCD:  1.563e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.41689128481581 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "499  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200316T041555_20200316T055726_12553_01_010302_20200319T090941.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.935  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.508e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-16 05:16:39.431000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.363e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.508e-01 DU\n",
      "VCD_trop:  3.282e-01 DU\n",
      "SCD:  7.482e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.461814914645103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "500  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200317T021530_20200317T035700_12566_01_010302_20200319T152320.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.506738544474395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "501  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200317T035700_20200317T053831_12567_01_010302_20200319T151310.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.306  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.634e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-17 04:57:40.443000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.551662174303683 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "502  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200317T053831_20200317T072001_12568_01_010302_20200319T154131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.596585804132975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "503  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200318T015635_20200318T033806_12580_01_010302_20200320T094526.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.641509433962266 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "504  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200318T033806_20200318T051936_12581_01_010302_20200320T095434.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.443  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.543e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-18 04:38:48.295000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.897e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.543e-01 DU\n",
      "VCD_trop:  5.320e-01 DU\n",
      "SCD:  8.054e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.686433063791554 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "505  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200318T051936_20200318T070106_12582_01_010302_20200320T101111.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.731356693620842 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "506  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200319T013741_20200319T031911_12594_01_010302_20200320T215729.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.776280323450134 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "507  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200319T031911_20200319T050041_12595_01_010302_20200320T221740.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.266  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.187e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-19 04:20:03.947000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.821203953279426 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "508  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200319T050041_20200319T064212_12596_01_010302_20200320T222458.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.866127583108714 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "509  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200320T011846_20200320T030016_12608_01_010302_20200321T173052.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "22.911051212938006 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "510  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200320T030016_20200320T044146_12609_01_010302_20200321T192517.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.889  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.742e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-20 04:01:27.399000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.296e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.742e-01 DU\n",
      "VCD_trop:  3.683e-01 DU\n",
      "SCD:  7.639e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "22.955974842767297 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "511  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200320T044146_20200320T062317_12610_01_010302_20200321T214725.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.00089847259659 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "512  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200321T005951_20200321T024121_12622_01_010302_20200322T171049.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.045822102425877 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "513  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200321T024121_20200321T042252_12623_01_010302_20200322T190826.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.546  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.959e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-21 03:42:56.010000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.090745732255165 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "514  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200321T042252_20200321T060422_12624_01_010302_20200322T212237.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.306  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.543e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-21 05:23:00.353000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.203e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.543e-01 DU\n",
      "VCD_trop:  8.477e-01 DU\n",
      "SCD:  8.153e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.135669362084457 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "515  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200322T022227_20200322T040357_12637_01_010302_20200323T183844.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.180592991913745 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "516  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200322T040357_20200322T054527_12638_01_010302_20200323T210315.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.793  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.627e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-22 05:03:59.325000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.864e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.627e-01 DU\n",
      "VCD_trop:  1.585e-01 DU\n",
      "SCD:  4.598e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.225516621743036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "517  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200322T054527_20200322T072658_12639_01_010302_20200323T222105.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.270440251572328 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "518  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200323T020332_20200323T034502_12651_01_010302_20200324T183037.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.31536388140162 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "519  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200323T034502_20200323T052632_12652_01_010302_20200324T201827.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.333  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.074e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-23 04:45:04.895000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.933e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.074e+00 DU\n",
      "VCD_trop:  9.621e-01 DU\n",
      "SCD:  1.308e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.360287511230908 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "520  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200323T052632_20200323T070803_12653_01_010302_20200324T220133.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.405211141060196 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "521  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200324T014437_20200324T032607_12665_01_010302_20200325T181933.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.450134770889488 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "522  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200324T032607_20200324T050738_12666_01_010302_20200325T200620.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.507  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.609e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-24 04:26:18.025000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.421e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.609e+00 DU\n",
      "VCD_trop:  1.503e+00 DU\n",
      "SCD:  1.958e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.495058400718776 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "523  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200324T050738_20200324T064908_12667_01_010302_20200325T215034.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.539982030548067 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "524  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200325T012542_20200325T030712_12679_01_010302_20200326T175305.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.58490566037736 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "525  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200325T030712_20200325T044843_12680_01_010302_20200326T193608.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.285  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.957e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-25 04:07:38.112000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.926e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.957e-01 DU\n",
      "VCD_trop:  9.019e-01 DU\n",
      "SCD:  1.132e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.62982929020665 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "526  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200325T044843_20200325T063013_12681_01_010302_20200326T214901.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.67475292003594 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "527  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200326T010647_20200326T024818_12693_01_010302_20200327T173317.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.71967654986523 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "528  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200326T024818_20200326T042948_12694_01_010302_20200327T190823.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.988  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.376e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-26 03:49:05.199000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.76460017969452 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "529  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200326T042948_20200326T061118_12695_01_010302_20200327T211404.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.542  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.939e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-26 05:29:20.461000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.809523809523807 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "530  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200327T004752_20200327T022923_12707_01_010302_20200328T165643.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.8544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "531  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200327T022923_20200327T041053_12708_01_010302_20200328T185915.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "23.89937106918239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "532  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200327T041053_20200327T055223_12709_01_010302_20200328T205649.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.449  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.498e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-27 05:10:17.989000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.586e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.498e-01 DU\n",
      "VCD_trop:  2.530e-01 DU\n",
      "SCD:  5.921e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "23.94429469901168 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "533  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200328T021028_20200328T035158_12722_01_010302_20200329T183302.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "23.98921832884097 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "534  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200328T035158_20200328T053329_12723_01_010302_20200329T202845.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.016  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.525e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-28 04:51:21.637000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.206e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.525e-01 DU\n",
      "VCD_trop:  3.370e-01 DU\n",
      "SCD:  6.483e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.03414195867026 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "535  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200328T053329_20200328T071459_12724_01_010302_20200330T103526.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.079065588499553 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "536  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200329T015133_20200329T033303_12736_01_010302_20200330T180714.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.12398921832884 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "537  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200329T033303_20200329T051434_12737_01_010302_20200330T201807.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.250  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.100e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-29 04:32:32.126000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.865e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.100e-01 DU\n",
      "VCD_trop:  4.920e-01 DU\n",
      "SCD:  8.241e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.16891284815813 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "538  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200329T051434_20200329T065604_12738_01_010302_20200330T215240.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.21383647798742 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "539  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200330T013238_20200330T031408_12750_01_010302_20200331T175249.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.258760107816713 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "540  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200330T031408_20200330T045539_12751_01_010302_20200331T193327.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.646  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.597e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-30 04:13:50.414000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.443e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.597e+00 DU\n",
      "VCD_trop:  1.475e+00 DU\n",
      "SCD:  2.017e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.303683737646 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "541  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200330T045539_20200330T063709_12752_01_010302_20200331T213738.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.348607367475292 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "542  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200331T011343_20200331T025513_12764_01_010302_20200401T174451.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.393530997304584 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "543  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200331T025513_20200331T043644_12765_01_010302_20200401T191246.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.992  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.178e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-31 03:55:14.822000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.733e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.178e+00 DU\n",
      "VCD_trop:  2.064e+00 DU\n",
      "SCD:  2.318e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.438454627133872 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "544  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200331T043644_20200331T061814_12766_01_010302_20200401T211935.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.847  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.378e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-03-31 05:35:41.844000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.109e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.378e+00 DU\n",
      "VCD_trop:  1.259e+00 DU\n",
      "SCD:  1.980e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.483378256963164 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "545  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200401T005448_20200401T023618_12778_01_010302_20200402T171459.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.528301886792452 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "546  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200401T023618_20200401T041749_12779_01_010302_20200402T184746.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.739  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.495e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-01 03:36:44.989000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.880e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.495e-01 DU\n",
      "VCD_trop:  4.211e-01 DU\n",
      "SCD:  8.663e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.573225516621743 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "547  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200401T041749_20200401T055919_12780_01_010302_20200402T204713.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.353  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.453e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-01 05:16:37.932000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.561e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.453e-01 DU\n",
      "VCD_trop:  2.114e-01 DU\n",
      "SCD:  7.112e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.61814914645103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "548  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200402T021723_20200402T035854_12793_01_010302_20200403T220955.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.663072776280323 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "549  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200402T035854_20200402T054024_12794_01_010302_20200403T204151.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.858  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.701e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-02 04:57:38.939000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.461e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.701e-01 DU\n",
      "VCD_trop:  4.375e-01 DU\n",
      "SCD:  8.937e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.707996406109615 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "550  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200402T054024_20200402T072154_12795_01_010302_20200403T221230.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.752920035938907 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "551  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200403T015828_20200403T033959_12807_01_010302_20200414T201427.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.797843665768195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "552  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200403T033959_20200403T052129_12808_01_010302_20200414T204104.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.412  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.715e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-03 04:38:46.786000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.773e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.715e-01 DU\n",
      "VCD_trop:  5.461e-01 DU\n",
      "SCD:  8.635e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.842767295597483 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "553  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200403T052129_20200403T070259_12809_01_010302_20200414T210701.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.887690925426774 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "554  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200404T013933_20200404T032104_12821_01_010302_20200415T030506.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "24.932614555256063 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "555  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200404T032104_20200404T050234_12822_01_010302_20200406T123906.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.445  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.554e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-04 04:20:02.792000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.442e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.554e-01 DU\n",
      "VCD_trop:  2.347e-01 DU\n",
      "SCD:  5.547e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "24.977538185085354 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "556  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200405T012038_20200405T030208_12835_01_010302_20200406T173518.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.022461814914642 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "557  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200405T030208_20200405T044339_12836_01_010302_20200406T193023.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.583  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.459e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-05 04:01:25.519000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.295e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.459e-01 DU\n",
      "VCD_trop:  3.230e-01 DU\n",
      "SCD:  7.641e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.067385444743934 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "558  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200405T044339_20200405T062509_12837_01_010302_20200406T215504.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.112309074573226 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "559  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200406T010143_20200406T024313_12849_01_010302_20200407T172546.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.157232704402517 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "560  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200406T024313_20200406T042444_12850_01_010302_20200407T190811.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.727  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.330e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-06 03:42:53.884000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.020e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.330e+00 DU\n",
      "VCD_trop:  1.217e+00 DU\n",
      "SCD:  1.558e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.202156334231805 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "561  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200406T042444_20200406T060614_12851_01_010302_20200407T213445.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.506  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.791e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-06 05:22:57.747000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.977e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.791e-01 DU\n",
      "VCD_trop:  6.574e-01 DU\n",
      "SCD:  8.657e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.247079964061097 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "562  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200407T022418_20200407T040548_12864_01_010302_20200408T190451.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.29200359389039 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "563  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200407T040548_20200407T054719_12865_01_010302_20200408T210548.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.687  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.954e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-07 05:03:57.313000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.921e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.954e-01 DU\n",
      "VCD_trop:  2.758e-01 DU\n",
      "SCD:  7.090e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.336927223719673 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "564  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200407T054719_20200407T072849_12866_01_010302_20200408T222528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.381850853548965 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "565  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200408T020523_20200408T034653_12878_01_010302_20200409T183304.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.426774483378257 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "566  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200408T034653_20200408T052824_12879_01_010302_20200409T202713.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.604  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.154e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-08 04:45:02.240000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.056e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.154e-01 DU\n",
      "VCD_trop:  1.991e-01 DU\n",
      "SCD:  4.671e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.471698113207548 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "567  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200408T052824_20200408T070954_12880_01_010302_20200409T220811.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.516621743036836 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "568  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200409T014628_20200409T032758_12892_01_010302_20200410T180704.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.561545372866128 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "569  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200409T032758_20200409T050928_12893_01_010302_20200410T195603.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.141  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.113e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-09 04:26:15.605000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.925e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.113e-01 DU\n",
      "VCD_trop:  2.939e-01 DU\n",
      "SCD:  5.831e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.60646900269542 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "570  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200409T050928_20200409T065059_12894_01_010302_20200410T213625.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.651392632524704 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "571  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200410T012732_20200410T030903_12906_01_010302_20200411T174407.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.696316262353996 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "572  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200410T030903_20200410T045033_12907_01_010302_20200411T192859.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.320  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.204e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-10 04:07:35.989000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.741239892183287 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "573  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200410T045033_20200410T063203_12908_01_010302_20200411T215018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.78616352201258 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "574  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200411T010837_20200411T025007_12920_01_010302_20200412T173559.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.83108715184187 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "575  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200411T025007_20200411T043138_12921_01_010302_20200412T192754.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.228  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.027e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-11 03:49:03.272000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.87601078167116 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "576  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200411T043138_20200411T061308_12922_01_010302_20200412T211944.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.912  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.396e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-11 05:29:18.654000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.335e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.396e-01 DU\n",
      "VCD_trop:  6.258e-01 DU\n",
      "SCD:  7.736e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "25.92093441150045 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "577  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200412T004942_20200412T023112_12934_01_010302_20200413T172512.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "25.96585804132974 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "578  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200412T023112_20200412T041242_12935_01_010302_20200413T184901.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "26.010781671159027 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "579  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200412T041242_20200412T055412_12936_01_010302_20200413T211232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.789  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.044e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-12 05:10:15.815000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.05570530098832 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "580  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200413T021216_20200413T035347_12949_01_010302_20200415T032555.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.10062893081761 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "581  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200413T035347_20200413T053517_12950_01_010302_20200415T081311.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   47.442  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.461e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-13 04:51:19.335000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.739e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.461e-01 DU\n",
      "VCD_trop:  3.268e-01 DU\n",
      "SCD:  4.924e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.1455525606469 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "582  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200413T053517_20200413T071647_12951_01_010302_20200415T075903.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.190476190476193 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "583  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200414T015321_20200414T033451_12963_01_010302_20200415T183104.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.23539982030548 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "584  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200414T033451_20200414T051621_12964_01_010302_20200415T200943.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   47.978  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.049e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-14 04:32:29.857000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.093e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.049e-01 DU\n",
      "VCD_trop:  5.868e-01 DU\n",
      "SCD:  8.199e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.28032345013477 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "585  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200414T051621_20200414T065752_12965_01_010302_20200415T215337.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.325247079964058 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "586  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200415T013425_20200415T031556_12977_01_010302_20200416T182315.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.37017070979335 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "587  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200415T031556_20200415T045726_12978_01_010302_20200416T195018.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.869  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.656e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-15 04:13:47.777000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.115e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.656e+00 DU\n",
      "VCD_trop:  1.530e+00 DU\n",
      "SCD:  1.137e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.41509433962264 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "588  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200415T045726_20200415T063856_12979_01_010302_20200416T213848.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.460017969451933 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "589  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200416T011530_20200416T025700_12991_01_010302_20200417T174142.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.504941599281224 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "590  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200416T025700_20200416T043830_12992_01_010302_20200417T192128.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.828  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.211e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-16 03:55:12.658000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.090e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.211e-01 DU\n",
      "VCD_trop:  4.047e-01 DU\n",
      "SCD:  9.978e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.549865229110516 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "591  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200416T043830_20200416T062000_12993_01_010302_20200417T211503.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.728  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.755e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-16 05:35:38.840000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.164e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.755e-01 DU\n",
      "VCD_trop:  7.527e-01 DU\n",
      "SCD:  9.428e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.5947888589398 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "592  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200417T005634_20200417T023804_13005_01_010302_20200418T174401.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.639712488769092 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "593  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200417T023804_20200417T041934_13006_01_010302_20200418T190155.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.269  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.150e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-17 03:36:41.737000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.68463611859838 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "594  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200417T041934_20200417T060105_13007_01_010302_20200418T210008.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.824  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.258e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-17 05:16:35.159000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.729559748427672 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "595  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200418T021909_20200418T040039_13020_01_010302_20200419T185232.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.774483378256964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "596  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200418T040039_20200418T054209_13021_01_010302_20200419T203705.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.967  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.152e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-18 04:57:36.038000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.297e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.152e-01 DU\n",
      "VCD_trop:  2.024e-01 DU\n",
      "SCD:  5.069e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.819407008086255 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "597  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200418T054209_20200418T072339_13022_01_010302_20200419T220037.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.864330637915547 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "598  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200419T020013_20200419T034143_13034_01_010302_20200420T182900.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.909254267744835 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "599  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200419T034143_20200419T052313_13035_01_010302_20200420T201115.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.214  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.653e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-19 04:38:43.878000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "26.954177897574123 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "600  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200419T052313_20200419T070444_13036_01_010302_20200420T215213.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "26.99910152740341 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "601  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200420T014117_20200420T032247_13048_01_010302_20200421T174536.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.044025157232703 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "602  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200420T032247_20200420T050417_13049_01_010302_20200421T195541.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.668  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.543e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-20 04:19:59.997000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.088948787061994 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "603  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200420T050417_20200420T064548_13050_01_010302_20200421T213855.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.133872416891286 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "604  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200421T012221_20200421T030351_13062_01_010302_20200422T174040.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.178796046720578 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "605  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200421T030351_20200421T044521_13063_01_010302_20200422T192032.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   45.031  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.865e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-21 04:01:22.594000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.22371967654987 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "606  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200421T044521_20200421T062652_13064_01_010302_20200422T213305.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.268643306379154 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "607  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200422T010325_20200422T024455_13076_01_010302_20200423T174714.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.313566936208446 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "608  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200422T024455_20200422T042625_13077_01_010302_20200423T190012.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.723  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.625e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-22 03:42:50.864000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.358490566037734 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "609  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200422T042625_20200422T060756_13078_01_010302_20200423T205114.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   47.753  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.112e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-22 05:22:55.206000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.403414195867025 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "610  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200423T022559_20200423T040729_13091_01_010302_20200424T184756.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.448337825696317 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "611  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200423T040729_20200423T054859_13092_01_010302_20200424T204202.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.986  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.931e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-23 05:03:53.928000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.905e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.931e-01 DU\n",
      "VCD_trop:  1.608e-01 DU\n",
      "SCD:  5.610e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.49326145552561 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "612  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200423T054859_20200423T073030_13093_01_010302_20200424T221912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.5381850853549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "613  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200424T020703_20200424T034833_13105_01_010302_20200426T065431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.583108715184185 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "614  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200424T034833_20200424T053003_13106_01_010302_20200426T092646.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.743  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.688e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-24 04:44:59.368000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.531e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.688e-01 DU\n",
      "VCD_trop:  2.266e-01 DU\n",
      "SCD:  5.397e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.628032345013477 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "615  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200424T053003_20200424T071134_13107_01_010302_20200426T093031.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.67295597484277 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "616  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200425T014807_20200425T032937_13119_01_010302_20200426T175251.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.717879604672056 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "617  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200425T032937_20200425T051107_13120_01_010302_20200426T200856.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.651  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.706e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-25 04:26:13.085000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.441e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.706e-01 DU\n",
      "VCD_trop:  2.411e-01 DU\n",
      "SCD:  4.944e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.762803234501348 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "618  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200425T051107_20200425T065237_13121_01_010302_20200426T212945.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.80772686433064 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "619  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200426T012910_20200426T031040_13133_01_010302_20200427T175707.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.85265049415993 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "620  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200426T031040_20200426T045211_13134_01_010302_20200427T192728.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.902  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.748e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-26 04:07:32.921000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.954e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.748e-01 DU\n",
      "VCD_trop:  1.330e-01 DU\n",
      "SCD:  5.038e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "27.897574123989216 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "621  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200426T045211_20200426T063341_13135_01_010302_20200427T215111.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.942497753818508 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "622  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200427T011014_20200427T025144_13147_01_010302_20200428T174110.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "27.9874213836478 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "623  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200427T025144_20200427T043314_13148_01_010302_20200428T191316.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.802  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.352e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-27 03:49:00.075000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.250e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.352e-01 DU\n",
      "VCD_trop:  2.941e-01 DU\n",
      "SCD:  7.570e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.03234501347709 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "624  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200427T043314_20200427T061444_13149_01_010302_20200428T212704.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.221  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.195e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-27 05:29:15.336000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.07726864330638 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "625  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200428T005117_20200428T023248_13161_01_010302_20200429T171258.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.12219227313567 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "626  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200428T023248_20200428T041418_13162_01_010302_20200429T185216.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "28.167115902964962 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "627  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200428T041418_20200428T055548_13163_01_010302_20200429T210043.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.205  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.345e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-28 05:10:12.849000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.163e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.345e-01 DU\n",
      "VCD_trop:  2.009e-01 DU\n",
      "SCD:  5.854e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.212039532794247 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "628  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200429T021351_20200429T035521_13176_01_010302_20200430T182736.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.25696316262354 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "629  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200429T035521_20200429T053651_13177_01_010302_20200430T203919.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.508  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.958e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-29 04:51:15.884000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.692e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.958e-01 DU\n",
      "VCD_trop:  2.679e-01 DU\n",
      "SCD:  5.575e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.30188679245283 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "630  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200429T053651_20200429T071822_13178_01_010302_20200430T220459.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.346810422282122 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "631  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200430T015454_20200430T033625_13190_01_010302_20200501T182731.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.39173405211141 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "632  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200430T033625_20200430T051755_13191_01_010302_20200501T200958.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.909  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.010e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-04-30 04:32:26.599000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.053e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.010e-01 DU\n",
      "VCD_trop:  1.760e-01 DU\n",
      "SCD:  4.384e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.4366576819407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "633  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200430T051755_20200430T065925_13192_01_010302_20200501T220303.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.481581311769993 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "634  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200501T013558_20200501T031728_13204_01_010302_20200502T180700.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.526504941599278 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "635  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200501T031728_20200501T045858_13205_01_010302_20200502T194358.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.477  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.747e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-01 04:13:44.273000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.762e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.747e-01 DU\n",
      "VCD_trop:  1.519e-01 DU\n",
      "SCD:  4.667e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.57142857142857 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "636  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200501T045858_20200501T064028_13206_01_010302_20200502T215953.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.61635220125786 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "637  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200502T011701_20200502T025831_13218_01_010302_20200503T175254.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.661275831087153 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "638  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200502T025831_20200502T044001_13219_01_010302_20200503T191715.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.665  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.390e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-02 03:55:09.506000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.706199460916444 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "639  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200502T044001_20200502T062131_13220_01_010302_20200503T214108.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.489  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.766e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-02 05:35:35.687000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.751123090745732 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "640  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200503T005804_20200503T023934_13232_01_010302_20200504T171342.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.796046720575024 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "641  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200503T023934_20200503T042104_13233_01_010302_20200504T190552.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.906  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.764e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-03 03:36:38.819000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.84097035040431 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "642  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200503T042104_20200503T060234_13234_01_010302_20200504T212740.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.293  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.130e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-03 05:16:32.241000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.8858939802336 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "643  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200504T022037_20200504T040207_13247_01_010302_20200505T183738.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "28.930817610062892 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "644  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200504T040207_20200504T054337_13248_01_010302_20200505T205751.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.911  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.103e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-04 04:57:32.751000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.057e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.103e-01 DU\n",
      "VCD_trop:  1.812e-01 DU\n",
      "SCD:  4.670e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "28.975741239892184 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "645  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200504T054337_20200504T072508_13249_01_010302_20200505T221452.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.020664869721475 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "646  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200505T020140_20200505T034310_13261_01_010302_20200506T181722.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.065588499550763 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "647  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200505T034310_20200505T052440_13262_01_010302_20200506T200731.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.909  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.404e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-05 04:38:40.702000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.110512129380055 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "648  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200505T052440_20200505T070610_13263_01_010302_20200506T221806.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.155435759209343 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "649  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200506T014243_20200506T032413_13275_01_010302_20200507T175420.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.20035938903863 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "650  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200506T032413_20200506T050543_13276_01_010302_20200507T200443.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.731  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.278e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-06 04:19:56.213000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.895e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.278e-01 DU\n",
      "VCD_trop:  7.023e-01 DU\n",
      "SCD:  9.963e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.245283018867923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "651  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200506T050543_20200506T064713_13277_01_010302_20200507T215646.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.290206648697215 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "652  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200507T012345_20200507T030515_13289_01_010302_20200508T173418.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.335130278526506 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "653  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200507T030515_20200507T044646_13290_01_010302_20200508T192802.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.221  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.956e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-07 04:01:19.161000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.047e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.956e-01 DU\n",
      "VCD_trop:  3.819e-01 DU\n",
      "SCD:  5.731e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.380053908355798 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "654  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200507T044646_20200507T062816_13291_01_010302_20200508T212719.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.424977538185086 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "655  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200508T010448_20200508T024618_13303_01_010302_20200509T170526.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.469901168014374 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "656  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200508T024618_20200508T042748_13304_01_010302_20200509T192044.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.607  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.635e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-08 03:42:47.627000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.685e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.635e-01 DU\n",
      "VCD_trop:  5.446e-01 DU\n",
      "SCD:  9.472e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.514824797843666 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "657  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200508T042748_20200508T060918_13305_01_010302_20200509T211544.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.408  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.850e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-08 05:22:51.248000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.559748427672954 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "658  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200509T022721_20200509T040851_13318_01_010302_20200511T121120.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.604672057502246 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "659  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200509T040851_20200509T055021_13319_01_010302_20200511T121208.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.030  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.389e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-09 05:03:50.916000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.649595687331537 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "660  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200509T055021_20200509T073151_13320_01_010302_20200511T121907.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.69451931716083 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "661  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200510T020823_20200510T034953_13332_01_010302_20200512T012724.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.73944294699012 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "662  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200510T034953_20200510T053123_13333_01_010302_20200512T021759.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.156  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.763e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-10 04:44:55.622000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.784366576819405 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "663  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200510T053123_20200510T071254_13334_01_010302_20200512T042407.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.829290206648697 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "664  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200510T172154_20200510T190325_13341_01_010302_20200512T224427.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.874213836477985 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "665  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200511T014925_20200511T033055_13346_01_010302_20200513T014251.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "29.919137466307276 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "666  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200511T033055_20200511T051226_13347_01_010302_20200513T023418.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.717  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.094e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-11 04:26:08.729000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.064e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.094e-01 DU\n",
      "VCD_trop:  1.652e-01 DU\n",
      "SCD:  4.830e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "29.964061096136568 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "667  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200511T051226_20200511T065356_13348_01_010302_20200513T030853.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.00898472596586 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "668  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200511T170257_20200511T184427_13355_01_010302_20200513T095128.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.05390835579515 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "669  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200511T184427_20200511T202557_13356_01_010302_20200513T114039.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.098831985624436 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "670  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200512T013028_20200512T031158_13360_01_010302_20200513T180300.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.143755615453728 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "671  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200512T031158_20200512T045328_13361_01_010302_20200513T192854.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.159  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.177e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-12 04:07:29.635000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.18867924528302 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "672  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200512T045328_20200512T063458_13362_01_010302_20200513T213550.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.233602875112307 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "673  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200512T164359_20200512T182529_13369_01_010302_20200514T092753.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.2785265049416 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "674  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200512T182529_20200512T200659_13370_01_010302_20200514T115416.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.32345013477089 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "675  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200513T011130_20200513T025300_13374_01_010302_20200514T171621.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.368373764600182 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "676  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200513T025300_20200513T043430_13375_01_010302_20200514T190214.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.066  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.123e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-13 03:48:56.581000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.020e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.123e-01 DU\n",
      "VCD_trop:  1.716e-01 DU\n",
      "SCD:  6.356e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.413297394429474 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "677  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200513T043430_20200513T061600_13376_01_010302_20200514T210949.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.086  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.835e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-13 05:29:11.122000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.801e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.835e-01 DU\n",
      "VCD_trop:  1.416e-01 DU\n",
      "SCD:  6.284e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.45822102425876 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "678  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200513T162501_20200513T180631_13383_01_010302_20200515T090725.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.50314465408805 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "679  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200513T180631_20200513T194801_13384_01_010302_20200515T105537.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.54806828391734 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "680  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200514T005232_20200514T023402_13388_01_010302_20200515T165559.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.59299191374663 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "681  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200514T023402_20200514T041532_13389_01_010302_20200515T190122.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "30.63791554357592 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "682  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200514T041532_20200514T055702_13390_01_010302_20200515T204743.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.058  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.423e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-14 05:10:08.869000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.286e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.423e-01 DU\n",
      "VCD_trop:  4.226e-01 DU\n",
      "SCD:  5.526e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.682839173405213 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "683  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200514T174733_20200514T192903_13398_01_010302_20200516T103408.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.727762803234505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "684  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200515T021504_20200515T035634_13403_01_010302_20200516T184832.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.77268643306379 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "685  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200515T035634_20200515T053804_13404_01_010302_20200516T203027.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.311  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.178e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-15 04:51:11.895000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.81761006289308 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "686  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200515T053804_20200515T071934_13405_01_010302_20200516T220930.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.862533692722373 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "687  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200515T172835_20200515T191005_13412_01_010302_20200517T102157.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.90745732255166 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "688  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200516T015605_20200516T033735_13417_01_010302_20200517T183547.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "30.952380952380953 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "689  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200516T033735_20200516T051906_13418_01_010302_20200517T202633.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.805  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.260e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-16 04:32:22.720000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "30.997304582210244 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "690  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200516T051906_20200516T070036_13419_01_010302_20200517T215015.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.042228212039536 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "691  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200516T170936_20200516T185107_13426_01_010302_20200518T100304.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.08715184186882 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "692  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200517T013707_20200517T031837_13431_01_010302_20200518T180654.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.132075471698112 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "693  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200517T031837_20200517T050007_13432_01_010302_20200518T201219.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.171  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.375e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-17 04:13:40.384000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.176999101527404 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "694  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200517T050007_20200517T064137_13433_01_010302_20200518T214730.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.221922731356695 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "695  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200517T165038_20200517T183208_13440_01_010302_20200519T095333.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.266846361185983 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "696  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200517T183208_20200517T201338_13441_01_010302_20200519T112355.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.311769991015275 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "697  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200518T011809_20200518T025939_13445_01_010302_20200519T174158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.356693620844567 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "698  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200518T025939_20200518T044109_13446_01_010302_20200519T193958.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.216  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.047e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-18 03:55:05.157000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.40161725067385 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "699  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200518T044109_20200518T062239_13447_01_010302_20200519T212651.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.653  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.688e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-18 05:35:31.937000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.446540880503143 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "700  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200518T163139_20200518T181310_13454_01_010302_20200520T091338.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.491464510332435 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "701  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200518T181310_20200518T195440_13455_01_010302_20200520T111451.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.536388140161726 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "702  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200519T005910_20200519T024040_13459_01_010302_20200520T172445.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.581311769991018 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "703  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200519T024040_20200519T042210_13460_01_010302_20200520T190447.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.619  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.252e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-19 03:36:35.178000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.626235399820306 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "704  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200519T042210_20200519T060340_13461_01_010302_20200520T204440.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.812  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.683e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-19 05:16:27.399000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.671159029649598 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "705  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200519T175411_20200519T193541_13469_01_010302_20200521T103719.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.716082659478882 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "706  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200520T022142_20200520T040312_13474_01_010302_20200521T185412.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.761006289308174 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "707  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200520T040312_20200520T054442_13475_01_010302_20200521T203008.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.031  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.886e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-20 04:57:28.500000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.095e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.886e-01 DU\n",
      "VCD_trop:  4.531e-01 DU\n",
      "SCD:  8.425e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.805929919137466 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "708  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200520T054442_20200520T072612_13476_01_010302_20200521T223940.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.850853548966757 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "709  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200521T020243_20200521T034413_13488_01_010302_20200522T183301.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.89577717879605 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "710  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200521T034413_20200521T052543_13489_01_010302_20200522T201154.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.833  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.801e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-21 04:38:36.439000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.765e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.801e-01 DU\n",
      "VCD_trop:  5.456e-01 DU\n",
      "SCD:  8.163e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "31.940700808625337 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "711  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200521T052543_20200521T070713_13490_01_010302_20200522T220815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "31.98562443845463 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "712  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200521T171613_20200521T185743_13497_01_010302_20200523T100250.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.03054806828391 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "713  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200522T014344_20200522T032514_13502_01_010302_20200523T180627.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.075471698113205 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "714  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200522T032514_20200522T050644_13503_01_010302_20200523T194736.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.888  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.015e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-22 04:19:52.419000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "32.1203953279425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "715  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200522T050644_20200522T064814_13504_01_010302_20200523T215003.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.16531895777179 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "716  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200522T165714_20200522T183844_13511_01_010302_20200524T093051.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.21024258760108 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "717  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200522T183844_20200522T202015_13512_01_010302_20200524T112428.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.25516621743037 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "718  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200523T012445_20200523T030615_13516_01_010302_20200524T173105.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.30008984725966 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "719  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200523T030615_20200523T044745_13517_01_010302_20200524T191643.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.454  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.889e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-23 04:01:15.118000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "32.34501347708895 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "720  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200523T044745_20200523T062915_13518_01_010302_20200524T212533.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.38993710691824 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "721  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200523T163815_20200523T181945_13525_01_010302_20200525T091235.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.43486073674753 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "722  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200523T181945_20200523T200115_13526_01_010302_20200525T110053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.47978436657682 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "723  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200524T010546_20200524T024716_13530_01_010302_20200525T172938.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.52470799640611 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "724  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200524T024716_20200524T042846_13531_01_010302_20200525T185800.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.105  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.960e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-24 03:42:42.976000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "32.5696316262354 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "725  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200524T042846_20200524T061016_13532_01_010302_20200525T210219.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.184  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.401e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-24 05:22:47.317000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "32.61455525606469 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "726  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200524T161916_20200524T180046_13539_01_010302_20200526T085017.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.659478885893975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "727  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200524T180046_20200524T194216_13540_01_010302_20200526T104417.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.70440251572327 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "728  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200525T022817_20200525T040947_13545_01_010302_20200526T185209.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.74932614555256 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "729  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200525T040947_20200525T055117_13546_01_010302_20200526T203435.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.333  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.022e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-25 05:03:46.615000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "32.79424977538185 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "730  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200525T055117_20200525T073247_13547_01_010302_20200526T223412.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.83917340521114 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "731  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200525T160017_20200525T174147_13553_01_010302_20200527T083323.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.88409703504043 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "732  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200525T174147_20200525T192317_13554_01_010302_20200527T105840.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.929020664869725 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "733  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200526T020917_20200526T035047_13559_01_010302_20200527T182614.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "32.97394429469901 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "734  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200526T035047_20200526T053217_13560_01_010302_20200527T202918.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.875  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.759e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-26 04:44:51.671000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.0188679245283 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "735  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200526T053217_20200526T071347_13561_01_010302_20200527T222224.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.06379155435759 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "736  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200526T172248_20200526T190418_13568_01_010302_20200528T102852.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.108715184186885 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "737  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200527T015018_20200527T033148_13573_01_010302_20200528T180651.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.153638814016176 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "738  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200527T033148_20200527T051318_13574_01_010302_20200528T201240.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.107  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.735e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-27 04:26:04.888000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.896e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.735e-01 DU\n",
      "VCD_trop:  4.417e-01 DU\n",
      "SCD:  6.840e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.19856244384546 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "739  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200527T051318_20200527T065448_13575_01_010302_20200528T220119.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.24348607367475 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "740  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200527T170348_20200527T184518_13582_01_010302_20200529T094538.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.288409703504044 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "741  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200527T184518_20200527T202648_13583_01_010302_20200529T115600.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.33333333333333 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "742  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200528T013118_20200528T031248_13587_01_010302_20200529T180251.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.37825696316262 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "743  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200528T031248_20200528T045418_13588_01_010302_20200529T195219.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.685  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.981e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-28 04:07:25.543000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.42318059299191 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "744  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200528T045418_20200528T063548_13589_01_010302_20200529T213005.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.468104222821204 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "745  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200528T164448_20200528T182618_13596_01_010302_20200530T093000.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.513027852650495 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "746  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200528T182618_20200528T200748_13597_01_010302_20200530T111443.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.55795148247979 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "747  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200529T011218_20200529T025348_13601_01_010302_20200530T172945.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.60287511230907 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "748  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200529T025348_20200529T043518_13602_01_010302_20200530T192207.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.971  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.017e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-29 03:48:51.719000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.365e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.017e+00 DU\n",
      "VCD_trop:  8.863e-01 DU\n",
      "SCD:  1.512e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.64779874213836 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "749  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200529T043518_20200529T061648_13603_01_010302_20200530T210442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.428  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.961e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-29 05:29:06.739000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.688e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.961e-01 DU\n",
      "VCD_trop:  5.582e-01 DU\n",
      "SCD:  1.170e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.692722371967655 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "750  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200529T162548_20200529T180719_13610_01_010302_20200531T090421.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.737646001796946 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "751  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200529T180719_20200529T194849_13611_01_010302_20200531T110944.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.78256963162624 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "752  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200530T005319_20200530T023449_13615_01_010302_20200531T172706.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.82749326145553 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "753  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200530T023449_20200530T041619_13616_01_010302_20200531T184859.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "33.872416891284814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "754  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200530T041619_20200530T055749_13617_01_010302_20200531T204637.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.417  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.129e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-30 05:10:04.625000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "33.917340521114106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "755  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200530T160649_20200530T174819_13624_01_010302_20200601T085516.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "33.9622641509434 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "756  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200530T174819_20200530T192949_13625_01_010302_20200601T105256.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.00718778077268 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "757  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200531T021549_20200531T035719_13630_01_010302_20200601T181334.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.052111410601974 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "758  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200531T035719_20200531T053849_13631_01_010302_20200601T204011.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.272  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.985e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-05-31 04:51:07.042000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.097035040431265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "759  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200531T053849_20200531T072019_13632_01_010302_20200601T222311.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.14195867026056 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "760  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200531T154749_20200531T172919_13638_01_010302_20200602T082725.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.18688230008985 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "761  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200601T015649_20200601T033819_13644_01_010302_20200602T175900.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.23180592991914 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "762  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200601T033819_20200601T051949_13645_01_010302_20200602T201625.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.713  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.766e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-01 04:32:17.977000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.365e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.766e-01 DU\n",
      "VCD_trop:  2.456e-01 DU\n",
      "SCD:  5.346e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.276729559748425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "763  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200601T051949_20200601T070119_13646_01_010302_20200602T221323.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.32165318957772 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "764  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200601T171018_20200601T185148_13653_01_010302_20200603T100320.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.36657681940701 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "765  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200602T013748_20200602T031918_13658_01_010302_20200603T175314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.4115004492363 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "766  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200602T031918_20200602T050048_13659_01_010302_20200603T194057.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.368  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.756e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-02 04:13:36.352000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.45642407906559 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "767  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200602T050048_20200602T064218_13660_01_010302_20200603T215124.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.50134770889488 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "768  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200602T165118_20200602T183248_13667_01_010302_20200604T093830.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.546271338724175 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "769  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200602T183248_20200602T201418_13668_01_010302_20200604T113520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.59119496855346 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "770  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200603T011848_20200603T030018_13672_01_010302_20200604T174225.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.63611859838275 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "771  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200603T030018_20200603T044148_13673_01_010302_20200604T191933.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.053  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.663e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-03 03:55:00.725000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.511e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.663e-01 DU\n",
      "VCD_trop:  2.389e-01 DU\n",
      "SCD:  7.541e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.681042228212036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "772  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200603T044148_20200603T062318_13674_01_010302_20200604T212734.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.242  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.627e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-03 05:35:26.904000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.309e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.627e-01 DU\n",
      "VCD_trop:  2.286e-01 DU\n",
      "SCD:  7.617e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.72596585804133 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "773  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200603T163218_20200603T181348_13681_01_010302_20200605T091840.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.77088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "774  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200603T181348_20200603T195518_13682_01_010302_20200605T110827.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.81581311769991 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "775  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200604T005948_20200604T024118_13686_01_010302_20200605T172511.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.8607367475292 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "776  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200604T024118_20200604T042248_13687_01_010302_20200605T185850.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.255  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.078e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-04 03:36:30.016000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.490e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.078e-01 DU\n",
      "VCD_trop:  2.852e-01 DU\n",
      "SCD:  7.397e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "34.90566037735849 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "777  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200604T042248_20200604T060418_13688_01_010302_20200605T210449.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "34.95058400718778 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "778  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200604T161317_20200604T175447_13695_01_010302_20200606T084751.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "34.99550763701707 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "779  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200604T175447_20200604T193617_13696_01_010302_20200606T104512.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.04043126684636 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "780  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200605T022217_20200605T040347_13701_01_010302_20200606T185521.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.08535489667565 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "781  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200605T040347_20200605T054517_13702_01_010302_20200606T204611.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.822  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.141e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-05 04:57:24.288000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.905e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.141e-01 DU\n",
      "VCD_trop:  5.753e-01 DU\n",
      "SCD:  9.856e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.130278526504945 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "782  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200605T054517_20200605T072647_13703_01_010302_20200606T222215.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.17520215633424 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "783  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200605T173547_20200605T191717_13710_01_010302_20200607T101041.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.22012578616352 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "784  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200606T020317_20200606T034446_13715_01_010302_20200607T183711.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.26504941599281 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "785  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200606T034446_20200606T052616_13716_01_010302_20200607T203730.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.215  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.933e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-06 04:38:31.498000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.309973045822105 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "786  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200606T052616_20200606T070746_13717_01_010302_20200607T215559.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.35489667565139 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "787  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200606T171646_20200606T185816_13724_01_010302_20200608T095422.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.39982030548068 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "788  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200607T014416_20200607T032546_13729_01_010302_20200608T181013.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.44474393530997 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "789  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200607T032546_20200607T050716_13730_01_010302_20200608T195547.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.580  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.182e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-07 04:19:47.708000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.065e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.182e-01 DU\n",
      "VCD_trop:  1.874e-01 DU\n",
      "SCD:  4.573e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.489667565139264 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "790  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200607T050716_20200607T064846_13731_01_010302_20200608T213016.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.53459119496855 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "791  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200607T183915_20200607T202045_13739_01_010302_20200609T113416.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.57951482479784 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "792  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200608T012515_20200608T030645_13743_01_010302_20200609T174414.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.62443845462713 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "793  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200608T030645_20200608T044815_13744_01_010302_20200609T192450.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.976  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.150e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-08 04:01:10.159000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.083e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.150e-01 DU\n",
      "VCD_trop:  5.951e-01 DU\n",
      "SCD:  1.077e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.669362084456424 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "794  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200608T044815_20200608T062945_13745_01_010302_20200609T211640.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.714285714285715 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "795  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200608T163844_20200608T182014_13752_01_010302_20200610T091731.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.75920934411501 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "796  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200609T010614_20200609T024744_13757_01_010302_20200610T173948.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.8041329739443 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "797  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200609T024744_20200609T042914_13758_01_010302_20200610T191050.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.445  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.095e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-09 03:42:38.007000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.839e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.095e-01 DU\n",
      "VCD_trop:  7.963e-01 DU\n",
      "SCD:  1.180e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.84905660377358 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "798  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200609T042914_20200609T061044_13759_01_010302_20200610T205643.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.509  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.815e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-09 05:22:41.867000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.662e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.815e-01 DU\n",
      "VCD_trop:  6.606e-01 DU\n",
      "SCD:  9.565e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "35.893980233602875 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "799  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200609T161943_20200609T180113_13766_01_010302_20200611T090443.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.93890386343217 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "800  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200609T180113_20200609T194243_13767_01_010302_20200611T104020.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "35.98382749326146 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "801  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200610T022843_20200610T041013_13772_01_010302_20200611T185358.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.02875112309075 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "802  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200610T041013_20200610T055142_13773_01_010302_20200611T204318.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.905  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.926e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-10 05:03:41.034000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "36.073674752920034 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "803  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200610T055142_20200610T073312_13774_01_010302_20200611T221405.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.118598382749326 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "804  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200610T160042_20200610T174212_13780_01_010302_20200612T082610.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.16352201257861 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "805  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200610T174212_20200610T192342_13781_01_010302_20200612T102632.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.2084456424079 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "806  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200611T020942_20200611T035111_13786_01_010302_20200612T184014.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.253369272237194 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "807  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200611T035111_20200611T053241_13787_01_010302_20200612T202120.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.825  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.215e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-11 04:44:46.200000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.019e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.215e-01 DU\n",
      "VCD_trop:  2.052e-01 DU\n",
      "SCD:  4.735e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "36.298292902066486 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "808  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200611T053241_20200611T071411_13788_01_010302_20200612T220919.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.34321653189578 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "809  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200611T154141_20200611T172311_13794_01_010302_20200613T075441.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.38814016172507 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "810  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200611T172311_20200611T190440_13795_01_010302_20200613T101143.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.43306379155436 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "811  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T015040_20200612T033210_13800_01_010302_20200613T180836.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.477987421383645 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "812  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T033210_20200612T051340_13801_01_010302_20200613T200659.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.470  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.412e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-12 04:25:59.376000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "36.52291105121294 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "813  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T051340_20200612T065510_13802_01_010302_20200614T085536.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.56783468104223 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "814  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T152239_20200612T170409_13808_01_010302_20200614T073809.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.61275831087152 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "815  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T170409_20200612T184539_13809_01_010302_20200614T095412.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.65768194070081 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "816  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200612T184539_20200612T202709_13810_01_010302_20200614T113848.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.7026055705301 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "817  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200613T013139_20200613T031308_13814_01_010302_20200615T094447.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.74752920035939 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "818  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200613T031308_20200613T045438_13815_01_010302_20200614T194117.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.202  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.552e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-13 04:07:20.141000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.031e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.552e-01 DU\n",
      "VCD_trop:  3.399e-01 DU\n",
      "SCD:  6.398e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "36.79245283018868 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "819  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200613T045438_20200613T063608_13816_01_010302_20200614T212030.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.837376460017964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "820  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200613T164507_20200613T182637_13823_01_010302_20200615T092315.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.882300089847256 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "821  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200613T182637_20200613T200807_13824_01_010302_20200615T112912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.92722371967655 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "822  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200614T011237_20200614T025407_13828_01_010302_20200615T174237.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "36.97214734950584 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "823  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200614T025407_20200614T043537_13829_01_010302_20200615T190507.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.905  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.353e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-14 03:48:46.785000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.621e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.353e-01 DU\n",
      "VCD_trop:  3.154e-01 DU\n",
      "SCD:  6.185e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.01707097933513 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "824  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200614T043537_20200614T061707_13830_01_010302_20200615T210344.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.039  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.328e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-14 05:29:01.564000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.438e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.328e-01 DU\n",
      "VCD_trop:  1.033e-01 DU\n",
      "SCD:  5.523e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.06199460916442 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "825  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200614T162606_20200614T180736_13837_01_010302_20200616T091828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.10691823899371 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "826  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200614T180736_20200614T194906_13838_01_010302_20200616T111509.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.151841868823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "827  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200615T005335_20200615T023505_13842_01_010302_20200616T171806.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.19676549865229 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "828  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200615T023505_20200615T041635_13843_01_010302_20200616T184830.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "37.24168912848158 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "829  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200615T041635_20200615T055805_13844_01_010302_20200616T204051.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.190  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.397e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-15 05:09:59.287000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.109e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.397e-01 DU\n",
      "VCD_trop:  2.074e-01 DU\n",
      "SCD:  5.677e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.28661275831087 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "830  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200615T160704_20200615T174834_13851_01_010302_20200617T084909.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.331536388140165 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "831  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200615T174834_20200615T193004_13852_01_010302_20200617T101640.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.37646001796946 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "832  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200616T021603_20200616T035733_13857_01_010302_20200617T182528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.42138364779874 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "833  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200616T035733_20200616T053903_13858_01_010302_20200617T202523.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.195  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.261e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-16 04:51:02.409000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.729e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.261e-01 DU\n",
      "VCD_trop:  3.943e-01 DU\n",
      "SCD:  7.895e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.46630727762803 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "834  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200616T053903_20200616T072033_13859_01_010302_20200617T215733.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.511230907457325 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "835  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200616T154802_20200616T172932_13865_01_010302_20200618T082435.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.55615453728661 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "836  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200616T172932_20200616T191102_13866_01_010302_20200618T095233.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.6010781671159 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "837  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200617T015701_20200617T033831_13871_01_010302_20200618T181738.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.64600179694519 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "838  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200617T033831_20200617T052001_13872_01_010302_20200618T201501.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.427  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.681e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-17 04:32:12.371000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.205e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.681e-01 DU\n",
      "VCD_trop:  3.496e-01 DU\n",
      "SCD:  6.197e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.690925426774484 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "839  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200617T052001_20200617T070131_13873_01_010302_20200618T214436.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.735849056603776 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "840  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200617T152900_20200617T171030_13879_01_010302_20200619T075656.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.78077268643306 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "841  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200617T171030_20200617T185200_13880_01_010302_20200619T093315.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.82569631626235 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "842  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T013759_20200618T031929_13885_01_010302_20200619T175041.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.870619946091644 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "843  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T031929_20200618T050059_13886_01_010302_20200619T194430.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.344  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.214e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-18 04:13:30.614000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "37.915543575920935 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "844  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T050059_20200618T064229_13887_01_010302_20200619T214217.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "37.96046720575023 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "845  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T150958_20200618T165128_13893_01_010302_20200620T074536.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.00539083557952 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "846  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T165128_20200618T183258_13894_01_010302_20200620T091931.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.05031446540881 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "847  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200618T183258_20200618T201428_13895_01_010302_20200620T110610.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.095238095238095 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "848  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200619T011857_20200619T030027_13899_01_010302_20200620T173122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.14016172506739 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "849  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200619T030027_20200619T044157_13900_01_010302_20200620T192742.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.515  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.214e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-19 03:54:55.338000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.18508535489668 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "850  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200619T044157_20200619T062327_13901_01_010302_20200620T212148.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.907  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.732e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-19 05:35:21.277000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.23000898472596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "851  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200619T163226_20200619T181355_13908_01_010302_20200621T085828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.274932614555254 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "852  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200619T181355_20200619T195525_13909_01_010302_20200621T105059.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.319856244384546 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "853  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200620T005955_20200620T024125_13913_01_010302_20200621T171718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.36477987421384 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "854  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200620T024125_20200620T042254_13914_01_010302_20200621T190744.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.069  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.892e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-20 03:36:25.224000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.40970350404312 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "855  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200620T042254_20200620T060424_13915_01_010302_20200621T205232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.905  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.033e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-20 05:16:17.564000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.028e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.033e-01 DU\n",
      "VCD_trop:  1.755e-01 DU\n",
      "SCD:  6.223e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.454627133872414 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "856  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200620T161323_20200620T175453_13922_01_010302_20200622T084521.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.499550763701706 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "857  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200620T175453_20200620T193623_13923_01_010302_20200622T102422.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "858  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200621T022222_20200621T040352_13928_01_010302_20200622T184952.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.58939802336029 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "859  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200621T040352_20200621T054522_13929_01_010302_20200622T202306.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.934  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.520e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-21 04:57:18.171000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.444e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.520e-01 DU\n",
      "VCD_trop:  2.201e-01 DU\n",
      "SCD:  5.638e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.63432165318958 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "860  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200621T054522_20200621T072652_13930_01_010302_20200622T215925.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.67924528301887 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "861  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200621T155421_20200621T173551_13936_01_010302_20200623T083309.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.72416891284816 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "862  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200621T173551_20200621T191720_13937_01_010302_20200623T101154.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.76909254267745 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "863  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200622T020320_20200622T034449_13942_01_010302_20200623T182509.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.81401617250674 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "864  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200622T034449_20200622T052619_13943_01_010302_20200623T201014.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.971  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.020e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-22 04:38:26.095000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.602e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.020e+00 DU\n",
      "VCD_trop:  8.946e-01 DU\n",
      "SCD:  1.254e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "38.85893980233603 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "865  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200622T052619_20200622T070749_13944_01_010302_20200623T213550.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.90386343216532 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "866  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200622T153518_20200622T171648_13950_01_010302_20200624T080401.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.94878706199461 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "867  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200622T171648_20200622T185818_13951_01_010302_20200624T094936.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "38.9937106918239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "868  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T014417_20200623T032547_13956_01_010302_20200624T175932.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.038634321653184 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "869  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T032547_20200623T050717_13957_01_010302_20200624T193837.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.531  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.615e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-23 04:19:41.779000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "39.083557951482476 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "870  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T050717_20200623T064846_13958_01_010302_20200624T213814.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.12848158131177 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "871  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T151615_20200623T165745_13964_01_010302_20200625T080503.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.17340521114106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "872  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T165745_20200623T183915_13965_01_010302_20200625T092743.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.21832884097035 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "873  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200623T183915_20200623T202045_13966_01_010302_20200625T112613.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.26325247079964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "874  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200624T012514_20200624T030644_13970_01_010302_20200625T174020.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.308176100628934 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "875  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200624T030644_20200624T044814_13971_01_010302_20200625T193514.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.095  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.110e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-24 04:01:04.823000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "39.35309973045822 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "876  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200624T044814_20200624T062944_13972_01_010302_20200625T212437.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.39802336028751 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "877  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200624T182012_20200624T200142_13980_01_010302_20200626T112531.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.4429469901168 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "878  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200625T010611_20200625T024741_13984_01_010302_20200626T173323.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.487870619946094 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "879  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200625T024741_20200625T042911_13985_01_010302_20200626T191008.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.228  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.078e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-25 03:42:33.208000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "39.532794249775385 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "880  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200625T042911_20200625T061041_13986_01_010302_20200626T210401.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "39.57771787960468 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "881  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200625T180109_20200625T194239_13994_01_010302_20200627T104613.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.62264150943396 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "882  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200626T022838_20200626T041008_13999_01_010302_20200627T185354.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.66756513926325 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "883  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200626T041008_20200626T055138_14000_01_010302_20200627T204132.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.226  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.329e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-26 05:03:35.632000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "39.71248876909254 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "884  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200626T055138_20200626T073308_14001_01_010302_20200627T222816.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.75741239892183 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "885  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200626T160036_20200626T174206_14007_01_010302_20200628T082514.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.80233602875112 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "886  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200627T020935_20200627T035105_14013_01_010302_20200628T183221.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.84725965858041 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "887  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200627T035105_20200627T053235_14014_01_010302_20200628T201348.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.953  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.686e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-27 04:44:41.277000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.169e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.686e-01 DU\n",
      "VCD_trop:  4.434e-01 DU\n",
      "SCD:  8.884e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "39.892183288409704 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "888  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200627T053235_20200627T071404_14015_01_010302_20200628T215338.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.937106918238996 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "889  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200627T154133_20200627T172303_14021_01_010302_20200629T081354.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "39.98203054806828 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "890  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200627T172303_20200627T190433_14022_01_010302_20200629T100827.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.02695417789757 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "891  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T015032_20200628T033202_14027_01_010302_20200629T175825.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.071877807726864 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "892  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T033202_20200628T051331_14028_01_010302_20200629T200752.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.156  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.627e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-28 04:25:54.361000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.647e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.627e-01 DU\n",
      "VCD_trop:  1.382e-01 DU\n",
      "SCD:  4.495e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "40.116801437556155 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "893  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T051331_20200628T065501_14029_01_010302_20200629T213247.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.16172506738545 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "894  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T152230_20200628T170400_14035_01_010302_20200630T073520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.20664869721474 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "895  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T170400_20200628T184529_14036_01_010302_20200630T095159.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.25157232704403 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "896  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200628T184529_20200628T202659_14037_01_010302_20200630T114144.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.296495956873315 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "897  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200629T013129_20200629T031258_14041_01_010302_20200630T173843.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.34141958670261 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "898  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200629T031258_20200629T045428_14042_01_010302_20200630T194137.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.412  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.078e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-29 04:07:14.525000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "40.3863432165319 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "899  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200629T045428_20200629T063558_14043_01_010302_20200630T212052.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.43126684636118 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "900  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200629T164456_20200629T182626_14050_01_010302_20200701T092654.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.476190476190474 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "901  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200629T182626_20200629T200756_14051_01_010302_20200701T111018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.521114106019766 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "902  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200630T011225_20200630T025355_14055_01_010302_20200701T172254.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.56603773584906 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "903  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200630T025355_20200630T043524_14056_01_010302_20200701T191125.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.587  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.534e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-30 03:48:41.048000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "40.61096136567834 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "904  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200630T043524_20200630T061654_14057_01_010302_20200701T205250.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.833  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.497e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-06-30 05:28:56.067000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "40.655884995507634 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "905  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200630T162553_20200630T180722_14064_01_010302_20200702T085252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.700808625336926 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "906  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200630T180722_20200630T194852_14065_01_010302_20200702T104657.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.74573225516622 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "907  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200701T005322_20200701T023451_14069_01_010302_20200702T165239.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.79065588499551 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "908  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200701T023451_20200701T041621_14070_01_010302_20200702T185752.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "40.8355795148248 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "909  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200701T041621_20200701T055751_14071_01_010302_20200702T203317.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.056  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.844e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-01 05:09:53.071000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "40.88050314465409 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "910  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200701T160649_20200701T174819_14078_01_010302_20200703T083419.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.92542677448338 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "911  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200701T174819_20200701T192949_14079_01_010302_20200703T102138.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "40.97035040431267 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "912  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200702T021548_20200702T035717_14084_01_010302_20200703T182941.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.01527403414196 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "913  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200702T035717_20200702T053847_14085_01_010302_20200703T201725.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.192  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.120e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-02 04:50:56.673000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.06019766397125 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "914  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200702T053847_20200702T072017_14086_01_010302_20200703T221708.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.105121293800536 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "915  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200702T154745_20200702T172915_14092_01_010302_20200704T082430.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.15004492362983 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "916  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200702T172915_20200702T191045_14093_01_010302_20200704T100400.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.19496855345912 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "917  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200703T015644_20200703T033814_14098_01_010302_20200704T181537.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.23989218328841 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "918  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200703T033814_20200703T051943_14099_01_010302_20200704T201153.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.093  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.556e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-03 04:32:06.514000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.573e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.556e-01 DU\n",
      "VCD_trop:  1.378e-01 DU\n",
      "SCD:  3.400e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.284815813117696 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "919  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200703T051943_20200703T070113_14100_01_010302_20200704T215545.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.32973944294699 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "920  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200703T152842_20200703T171011_14106_01_010302_20200714T054917.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.37466307277628 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "921  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200703T171011_20200703T185141_14107_01_010302_20200714T074503.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.41958670260557 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "922  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200704T013740_20200704T031910_14112_01_010302_20200714T205843.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.46451033243486 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "923  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200704T031910_20200704T050039_14113_01_010302_20200714T224011.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.147  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.342e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-04 04:13:24.875000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.509433962264154 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "924  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200704T050039_20200704T064209_14114_01_010302_20200714T233928.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.554357592093446 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "925  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200704T165107_20200704T183237_14121_01_010302_20200706T094334.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.59928122192273 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "926  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200704T183237_20200704T201407_14122_01_010302_20200706T111735.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.64420485175202 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "927  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200705T011836_20200705T030006_14126_01_010302_20200706T172529.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.689128481581314 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "928  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200705T030006_20200705T044135_14127_01_010302_20200706T192721.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.760  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.683e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-05 03:54:49.876000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.734052111410605 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "929  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200705T044135_20200705T062305_14128_01_010302_20200706T212519.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.356  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.073e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-05 05:35:15.455000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.77897574123989 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "930  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200705T163203_20200705T181333_14135_01_010302_20200707T090401.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.82389937106918 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "931  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200705T181333_20200705T195503_14136_01_010302_20200707T105304.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.86882300089847 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "932  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200706T005932_20200706T024102_14140_01_010302_20200707T172142.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "41.91374663072776 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "933  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200706T024102_20200706T042231_14141_01_010302_20200707T184649.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.946  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.412e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-06 03:36:19.515000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "41.95867026055705 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "934  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200706T042231_20200706T060401_14142_01_010302_20200707T205346.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.263  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.843e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-06 05:16:11.495000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "42.00359389038634 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "935  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200706T161259_20200706T175429_14149_01_010302_20200708T085356.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.04851752021563 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "936  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200706T175429_20200706T193559_14150_01_010302_20200708T103721.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.093441150044924 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "937  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200707T022158_20200707T040327_14155_01_010302_20200708T183206.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.138364779874216 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "938  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200707T040327_20200707T054457_14156_01_010302_20200708T203833.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.547  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.827e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-07 04:57:12.216000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "42.18328840970351 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "939  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200707T054457_20200707T072627_14157_01_010302_20200708T221137.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.22821203953279 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "940  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200707T155355_20200707T173525_14163_01_010302_20200709T084103.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.273135669362084 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "941  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200707T173525_20200707T191654_14164_01_010302_20200709T101123.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.318059299191376 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "942  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200708T020253_20200708T034423_14169_01_010302_20200709T183552.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.36298292902067 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "943  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200708T034423_20200708T052553_14170_01_010302_20200709T202756.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.793  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.017e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-08 04:38:20.259000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "42.40790655884996 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "944  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200708T052553_20200708T070722_14171_01_010302_20200709T220510.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.45283018867924 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "945  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200708T171620_20200708T185750_14178_01_010302_20200710T094923.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.497753818508535 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "946  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200709T014349_20200709T032519_14183_01_010302_20200710T183030.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.54267744833783 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "947  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200709T032519_20200709T050648_14184_01_010302_20200710T195336.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.749  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.677e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-09 04:19:35.860000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.465e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.677e-01 DU\n",
      "VCD_trop:  2.416e-01 DU\n",
      "SCD:  4.902e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "42.58760107816711 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "948  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200709T050648_20200709T064818_14185_01_010302_20200710T215013.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.6325247079964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "949  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200709T165716_20200709T183846_14192_01_010302_20200711T092737.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.677448337825695 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "950  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200709T183846_20200709T202015_14193_01_010302_20200711T113020.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.722371967654986 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "951  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200710T012444_20200710T030614_14197_01_010302_20200711T175829.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.76729559748428 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "952  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200710T030614_20200710T044744_14198_01_010302_20200711T192748.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.869  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.496e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-10 04:00:59.377000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "42.81221922731357 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "953  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200710T044744_20200710T062913_14199_01_010302_20200711T212241.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.857142857142854 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "954  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200710T163811_20200710T181941_14206_01_010302_20200712T090652.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.902066486972146 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "955  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200710T181941_20200710T200111_14207_01_010302_20200712T110150.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.94699011680144 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "956  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200711T010540_20200711T024709_14211_01_010302_20200712T173208.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "42.99191374663073 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "957  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200711T024709_20200711T042839_14212_01_010302_20200712T191421.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.705  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.724e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-11 03:42:27.574000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.03683737646002 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "958  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200711T042839_20200711T061009_14213_01_010302_20200712T210733.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.578  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.016e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-11 05:22:30.233000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.08176100628931 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "959  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200711T161907_20200711T180036_14220_01_010302_20200713T084420.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.126684636118604 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "960  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200711T180036_20200711T194206_14221_01_010302_20200713T105203.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.17160826594789 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "961  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200712T022805_20200712T040934_14226_01_010302_20200713T183855.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.21653189577718 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "962  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200712T040934_20200712T055104_14227_01_010302_20200713T202950.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.581  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.578e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-12 05:03:29.511000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.261455525606465 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "963  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200712T055104_20200712T073234_14228_01_010302_20200713T221934.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.306379155435756 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "964  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200712T160002_20200712T174132_14234_01_010302_20200715T045621.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.35130278526505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "965  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200712T174132_20200712T192301_14235_01_010302_20200715T054722.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.39622641509434 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "966  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200713T020900_20200713T035030_14240_01_010302_20200721T104359.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.44115004492363 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "967  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200713T035030_20200713T053159_14241_01_010302_20200721T105222.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.295  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.038e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-13 04:44:34.432000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.486073674752916 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "968  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200713T053159_20200713T071329_14242_01_010302_20200721T110919.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.53099730458221 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "969  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200714T014955_20200714T033125_14254_01_010302_20200722T065331.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.5759209344115 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "970  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200714T033125_20200714T051254_14255_01_010302_20200722T072224.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.047  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.092e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-14 04:25:47.993000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.62084456424079 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "971  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200714T051254_20200714T065424_14256_01_010302_20200722T071914.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.66576819407008 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "972  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200714T184452_20200714T202621_14264_01_010302_20200722T085036.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.710691823899374 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "973  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200715T013050_20200715T031220_14268_01_010302_20200723T002448.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.755615453728666 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "974  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200715T031220_20200715T045349_14269_01_010302_20200723T005949.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.526  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.425e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-15 04:07:08.516000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.80053908355795 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "975  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200715T045349_20200715T063519_14270_01_010302_20200723T005455.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.84546271338724 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "976  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200715T164417_20200715T182546_14277_01_010302_20200723T014431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.890386343216534 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "977  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200716T011145_20200716T025315_14282_01_010302_20200723T171240.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "43.93530997304582 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "978  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200716T025315_20200716T043444_14283_01_010302_20200723T171745.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.986  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.197e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-16 03:48:35.038000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "43.98023360287511 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "979  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200716T043444_20200716T061614_14284_01_010302_20200723T173058.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.551  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.715e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-16 05:28:49.577000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "44.0251572327044 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "980  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200716T162512_20200716T180641_14291_01_010302_20200917T153855.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.07008086253369 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "981  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200716T180641_20200716T194811_14292_01_010302_20200918T101006.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.11500449236298 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "982  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200717T005240_20200717T023410_14296_01_010302_20200724T114922.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.15992812219227 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "983  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200717T023410_20200717T041539_14297_01_010302_20200724T113852.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "44.20485175202156 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "984  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200717T041539_20200717T055709_14298_01_010302_20200724T114054.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.169  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.446e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-17 05:09:46.700000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "44.24977538185085 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "985  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200717T160606_20200717T174736_14305_01_010302_20200724T125642.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.294699011680144 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "986  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200717T174736_20200717T192906_14306_01_010302_20200724T131659.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.339622641509436 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "987  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200718T021504_20200718T035634_14311_01_010302_20200725T112212.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.38454627133873 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "988  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200718T035634_20200718T053803_14312_01_010302_20200725T112248.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.983  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.446e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-18 04:50:50.261000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.362e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.446e-01 DU\n",
      "VCD_trop:  2.233e-01 DU\n",
      "SCD:  5.482e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "44.42946990116801 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "989  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200718T053803_20200718T071933_14313_01_010302_20200725T115339.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.474393530997304 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "990  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200718T172831_20200718T191000_14320_01_010302_20200725T115616.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.519317160826596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "991  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200719T015559_20200719T033729_14325_01_010302_20200726T110449.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.56424079065589 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "992  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200719T033729_20200719T051858_14326_01_010302_20200726T105900.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   16.639  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [5.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.346e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-19 04:32:00.703000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "44.60916442048518 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "993  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200719T051858_20200719T070028_14327_01_010302_20200726T112443.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.65408805031446 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "994  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200719T170925_20200719T185055_14334_01_010302_20200726T112709.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.699011680143755 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "995  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200720T013654_20200720T031823_14339_01_010302_20200727T194906.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.74393530997305 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "996  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200720T031823_20200720T045953_14340_01_010302_20200727T201622.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.854  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.561e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-20 04:13:19.304000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "44.78885893980233 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "997  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200720T045953_20200720T064122_14341_01_010302_20200727T200856.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.83378256963162 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "998  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200720T165020_20200720T183150_14348_01_010302_20200727T202829.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.878706199460915 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "999  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200720T183150_20200720T201319_14349_01_010302_20200727T202401.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.923629829290206 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1000  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200721T011748_20200721T025918_14353_01_010302_20200728T112649.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "44.9685534591195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1001  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200721T025918_20200721T044047_14354_01_010302_20200728T114136.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.336  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.401e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-21 03:54:43.664000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.01347708894879 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1002  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200721T044047_20200721T062217_14355_01_010302_20200728T120430.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.039  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.652e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-21 05:35:08.762000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.05840071877808 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1003  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200721T163114_20200721T181244_14362_01_010302_20200728T120305.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.103324348607366 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1004  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200721T181244_20200721T195414_14363_01_010302_20200728T120028.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.14824797843666 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1005  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200722T005842_20200722T024012_14367_01_010302_20200729T085430.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.19317160826595 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1006  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200722T024012_20200722T042141_14368_01_010302_20200729T091409.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.788  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.102e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-22 03:36:13.543000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.23809523809524 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1007  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200722T042141_20200722T060311_14369_01_010302_20200729T094735.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.409  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.334e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-22 05:16:05.162000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.28301886792453 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1008  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210221T003713_20210221T021843_17403_01_010400_20210222T175130.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.32794249775382 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1009  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200723T022106_20200723T040236_14382_01_010302_20200730T071508.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.37286612758311 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1010  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200723T040236_20200723T054405_14383_01_010302_20200730T072104.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.843  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.379e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-23 04:57:05.883000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.41778975741239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1011  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200723T054405_20200723T072535_14384_01_010302_20200730T071248.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.462713387241685 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1012  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200723T173433_20200723T191602_14391_01_010302_20200730T073404.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.50763701707098 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1013  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200724T020201_20200724T034330_14396_01_010302_20200730T232220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.55256064690027 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1014  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200724T034330_20200724T052500_14397_01_010302_20200730T233232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.102  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.123e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-24 04:38:14.204000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.59748427672956 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1015  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200724T052500_20200724T070629_14398_01_010302_20200730T232427.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.64240790655885 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1016  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200724T171527_20200724T185656_14405_01_010302_20200730T233435.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.68733153638814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1017  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200725T014255_20200725T032424_14410_01_010302_20200731T153355.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.73225516621743 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1018  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200725T032424_20200725T050554_14411_01_010302_20200731T153057.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.708  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.896e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-25 04:19:29.807000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "45.77717879604672 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1019  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200725T050554_20200725T064723_14412_01_010302_20200731T154404.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.82210242587601 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1020  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200725T165621_20200725T183750_14419_01_010302_20200731T154252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.8670260557053 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1021  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200725T183750_20200725T201920_14420_01_010302_20200731T164917.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.911949685534594 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1022  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200726T012349_20200726T030518_14424_01_010302_20200801T095830.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "45.956873315363886 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1023  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200726T030518_20200726T044648_14425_01_010302_20200801T095152.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.478  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.038e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-26 04:00:52.370000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.00179694519318 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1024  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200726T044648_20200726T062817_14426_01_010302_20200801T100912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.04672057502246 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1025  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200726T163715_20200726T181844_14433_01_010302_20200801T100657.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.091644204851754 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1026  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200726T181844_20200726T200014_14434_01_010302_20200801T102706.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.13656783468104 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1027  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200727T024612_20200727T042742_14439_01_010302_20200802T073246.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.789  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.657e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-27 03:42:20.815000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.18149146451033 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1028  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200727T042742_20200727T060911_14440_01_010302_20200802T075650.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.424  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.069e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-27 05:22:23.475000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.22641509433962 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1029  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200727T175938_20200727T194108_14448_01_010302_20200802T081133.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.27133872416891 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1030  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200728T022706_20200728T040836_14453_01_010302_20200802T231124.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.316262353998205 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1031  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200728T040836_20200728T055005_14454_01_010302_20200802T231929.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.699  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.947e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-28 05:03:22.763000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.36118598382749 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1032  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200728T055005_20200728T073135_14455_01_010302_20200802T233120.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.40610961365678 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1033  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200728T174032_20200728T192202_14462_01_010302_20200803T001833.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.45103324348607 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1034  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200729T020800_20200729T034929_14467_01_010302_20200803T155040.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.495956873315365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1035  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200729T034929_20200729T053059_14468_01_010302_20200803T161655.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.257  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.812e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-29 04:44:28.411000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.540880503144656 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1036  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200729T053059_20200729T071229_14469_01_010302_20200803T163224.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.58580413297395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1037  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200729T172126_20200729T190255_14476_01_010302_20200803T171259.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.63072776280324 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1038  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200730T014854_20200730T033023_14481_01_010302_20200804T085410.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.675651392632524 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1039  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200730T033023_20200730T051153_14482_01_010302_20200804T091356.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.554  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.044e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-30 04:25:41.619000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.720575022461816 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1040  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200730T051153_20200730T065322_14483_01_010302_20200804T092344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.76549865229111 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1041  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200731T012947_20200731T031117_14495_01_010302_20200805T085145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.81042228212039 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1042  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200731T031117_20200731T045246_14496_01_010302_20200805T090208.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.751  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.510e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-07-31 04:07:01.788000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.855345911949684 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1043  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200731T045246_20200731T063416_14497_01_010302_20200805T090123.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.900269541778975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1044  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200801T011041_20200801T025210_14509_01_010302_20200806T212207.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "46.94519317160827 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1045  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200801T025210_20200801T043340_14510_01_010302_20200806T212503.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.634  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.538e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-01 03:48:28.435000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "46.99011680143755 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1046  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200801T043340_20200801T061509_14511_01_010302_20200806T211555.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.299  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.103e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-01 05:28:42.615000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.03504043126684 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1047  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200802T005134_20200802T023304_14523_01_010302_20200807T135153.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.079964061096135 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1048  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200802T023304_20200802T041433_14524_01_010302_20200807T135713.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.124887690925426 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1049  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200802T041433_20200802T055603_14525_01_010302_20200807T134433.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.006  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.832e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-02 05:09:39.925000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.16981132075472 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1050  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200803T021357_20200803T035527_14538_01_010302_20200808T114358.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.21473495058401 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1051  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200803T035527_20200803T053656_14539_01_010302_20200808T113639.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.009  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.954e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-03 04:50:43.176000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.2596585804133 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1052  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200803T053656_20200803T071826_14540_01_010302_20200808T114918.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.304582210242586 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1053  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200804T015451_20200804T033620_14552_01_010302_20200809T070052.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.34950584007188 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1054  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200804T033620_20200804T051750_14553_01_010302_20200809T072353.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.498  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.958e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-04 04:31:53.627000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.39442946990117 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1055  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200804T051750_20200804T065919_14554_01_010302_20200809T073508.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.43935309973046 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1056  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200805T013544_20200805T031713_14566_01_010302_20200809T225700.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.48427672955975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1057  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200805T031713_20200805T045843_14567_01_010302_20200809T230833.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.000  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.138e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-05 04:13:12.118000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.52920035938904 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1058  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200805T045843_20200805T064012_14568_01_010302_20200809T231744.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.57412398921833 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1059  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200806T011637_20200806T025807_14580_01_010302_20200810T155419.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.61904761904761 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1060  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200806T025807_20200806T043936_14581_01_010302_20200810T155622.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.089  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.421e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-06 03:54:37.088000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.663971248876905 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1061  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200806T043936_20200806T062106_14582_01_010302_20200810T160713.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.181  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.239e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-06 05:35:02.187000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.7088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1062  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200807T005730_20200807T023900_14594_01_010302_20200811T092928.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.75381850853549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1063  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200807T023900_20200807T042029_14595_01_010302_20200811T090811.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.566  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.074e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-07 03:36:06.258000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.79874213836478 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1064  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200807T042029_20200807T060159_14596_01_010302_20200811T093003.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.318  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.458e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-07 05:15:57.758000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.84366576819407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1065  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200808T021953_20200808T040122_14609_01_010302_20200812T071319.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.88858939802336 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1066  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200808T040122_20200808T054252_14610_01_010302_20200812T075516.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.196  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.501e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-08 04:56:58.969000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "47.93351302785265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1067  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200808T054252_20200808T072421_14611_01_010302_20200812T073636.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "47.97843665768194 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1068  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200809T020046_20200809T034215_14623_01_010302_20200812T225449.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.02336028751123 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1069  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200809T034215_20200809T052345_14624_01_010302_20200812T231618.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.684  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [0.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.234e+40\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-09 04:38:07.301000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.06828391734052 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1070  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200809T052345_20200809T070514_14625_01_010302_20200812T231729.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.113207547169814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1071  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200810T014139_20200810T032308_14637_01_010302_20200813T181145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.158131176999106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1072  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200810T032308_20200810T050438_14638_01_010302_20200813T184040.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.189  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.645e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-10 04:19:22.913000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.20305480682839 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1073  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200810T050438_20200810T064607_14639_01_010302_20200813T190346.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.24797843665768 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1074  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200811T012232_20200811T030401_14651_01_010302_20200814T102454.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.29290206648697 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1075  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200811T030401_20200811T044530_14652_01_010302_20200814T103520.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.261  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.529e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-11 04:00:46.206000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.33782569631626 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1076  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200811T044530_20200811T062700_14653_01_010302_20200814T103456.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.38274932614555 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1077  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200812T010324_20200812T024454_14665_01_010302_20200815T104047.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.42767295597484 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1078  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200812T024454_20200812T042623_14666_01_010302_20200815T105057.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.651  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.687e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-12 03:42:13.819000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.47259658580413 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1079  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200812T042623_20200812T060753_14667_01_010302_20200815T111629.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "48.517520215633425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1080  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200813T022547_20200813T040716_14680_01_010302_20200816T114717.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.56244384546272 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1081  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200813T040716_20200813T054845_14681_01_010302_20200816T115324.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.202  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.144e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-13 05:03:15.855000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.607367475292 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1082  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200813T054845_20200813T073015_14682_01_010302_20200816T120722.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.65229110512129 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1083  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200814T020639_20200814T034809_14694_01_010302_20200817T082252.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.697214734950585 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1084  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200814T034809_20200814T052938_14695_01_010302_20200817T082811.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.087  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.507e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-14 04:44:21.573000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.742138364779876 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1085  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200814T052938_20200814T071108_14696_01_010302_20200817T082418.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.78706199460917 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1086  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200815T014732_20200815T032901_14708_01_010302_20200818T103937.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.83198562443846 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1087  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200815T032901_20200815T051031_14709_01_010302_20200818T104353.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.113  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.683e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-15 04:25:34.312000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "48.876909254267744 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1088  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200815T051031_20200815T065200_14710_01_010302_20200818T103232.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.921832884097036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1089  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200816T012824_20200816T030954_14722_01_010302_20200819T080105.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "48.96675651392633 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1090  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200816T030954_20200816T045123_14723_01_010302_20200819T082057.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.933  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.594e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-16 04:06:54.850000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.01168014375561 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1091  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200816T045123_20200816T063253_14724_01_010302_20200819T082658.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.056603773584904 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1092  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200817T010917_20200817T025046_14736_01_010302_20200820T074405.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.101527403414195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1093  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200817T025046_20200817T043216_14737_01_010302_20200820T074346.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.901  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.237e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-17 03:48:22.230000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.14645103324349 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1094  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200817T043216_20200817T061345_14738_01_010302_20200820T074756.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.002  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.480e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-17 05:28:35.811000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.19137466307278 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1095  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200818T023139_20200818T041308_14751_01_010302_20200821T095946.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.23629829290206 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1096  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200818T041308_20200818T055438_14752_01_010302_20200821T103450.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.722  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.223e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-18 05:09:32.833000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.944e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.223e-01 DU\n",
      "VCD_trop:  2.112e-01 DU\n",
      "SCD:  5.708e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.281221922731355 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1097  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200819T021231_20200819T035401_14765_01_010302_20200822T071753.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.32614555256065 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1098  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200819T035401_20200819T053530_14766_01_010302_20200822T074750.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.405  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.164e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-19 04:50:36.456000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.37106918238994 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1099  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200819T053530_20200819T071659_14767_01_010302_20200822T075210.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.41599281221923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1100  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200820T015323_20200820T033453_14779_01_010302_20200823T004158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.46091644204852 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1101  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200820T033453_20200820T051622_14780_01_010302_20200823T012338.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.441  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.324e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-20 04:31:46.680000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.119e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.324e-01 DU\n",
      "VCD_trop:  2.226e-01 DU\n",
      "SCD:  5.267e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.50584007187781 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1102  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200820T051622_20200820T065752_14781_01_010302_20200823T012251.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.5507637017071 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1103  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200821T013416_20200821T031545_14793_01_010302_20200823T182504.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.59568733153639 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1104  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200821T031545_20200821T045714_14794_01_010302_20200823T185916.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.449  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.277e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-21 04:13:04.824000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.64061096136568 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1105  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200821T045714_20200821T063844_14795_01_010302_20200823T192357.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.685534591194966 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1106  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200822T011508_20200822T025637_14807_01_010302_20200824T121636.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.73045822102426 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1107  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200822T025637_20200822T043807_14808_01_010302_20200824T123314.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.556  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.291e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-22 03:54:30.169000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.77538185085355 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1108  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200822T043807_20200822T061936_14809_01_010302_20200824T123846.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.295  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.347e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-22 05:34:54.670000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.82030548068284 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1109  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200823T005600_20200823T023729_14821_01_010302_20200824T174446.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "49.865229110512125 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1110  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200823T023729_20200823T041859_14822_01_010302_20200825T100140.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.082  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.292e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-23 03:35:59.234000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "49.91015274034142 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1111  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200823T041859_20200823T060028_14823_01_010302_20200825T103157.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "49.95507637017071 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1112  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200824T021821_20200824T035951_14836_01_010302_20200826T095715.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.0 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1113  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200824T035951_20200824T054120_14837_01_010302_20200826T102710.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.728  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.428e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-24 04:56:51.359000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.044923629829285 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1114  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200824T054120_20200824T072250_14838_01_010302_20200826T104007.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.08984725965858 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1115  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200825T015914_20200825T034043_14850_01_010302_20200826T183305.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.13477088948787 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1116  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200825T034043_20200825T052212_14851_01_010302_20200826T204605.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.271  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.969e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-25 04:37:59.349000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.17969451931717 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1117  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200825T052212_20200825T070342_14852_01_010302_20200826T222619.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.22461814914645 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1118  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200826T014005_20200826T032135_14864_01_010302_20200827T181703.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.26954177897574 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1119  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200826T032135_20200826T050304_14865_01_010302_20200827T203108.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.999  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.754e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-26 04:19:15.581000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.314465408805034 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1120  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200826T050304_20200826T064434_14866_01_010302_20200827T215442.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.35938903863432 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1121  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200827T012058_20200827T030227_14878_01_010302_20200828T174528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.40431266846361 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1122  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200827T030227_20200827T044356_14879_01_010302_20200828T195113.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.937  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.852e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-27 04:00:38.533000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.4492362982929 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1123  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200827T044356_20200827T062526_14880_01_010302_20200828T214935.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.494159928122194 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1124  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200828T010150_20200828T024320_14892_01_010302_20200829T174332.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.53908355795148 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1125  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200828T024320_20200828T042449_14893_01_010302_20200829T191459.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.521  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.994e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-28 03:42:07.725000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.58400718778078 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1126  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200828T042449_20200828T060619_14894_01_010302_20200829T211407.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.479  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.891e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-28 05:22:09.787000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.62893081761006 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1127  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200829T022412_20200829T040542_14907_01_010302_20200830T184506.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.673854447439346 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1128  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200829T040542_20200829T054711_14908_01_010302_20200830T205356.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.952  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.979e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-29 05:03:09.940000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.718778077268645 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1129  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200829T054711_20200829T072841_14909_01_010302_20200830T230638.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.76370170709793 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1130  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200830T020505_20200830T034634_14921_01_010302_20200831T183248.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.80862533692723 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1131  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200830T034634_20200830T052804_14922_01_010302_20200831T203229.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.533  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.680e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-30 04:44:16.213000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.85354896675651 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1132  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200830T052804_20200830T070933_14923_01_010302_20200831T222223.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.89847259658581 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1133  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200831T014558_20200831T032727_14935_01_010302_20200901T182227.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "50.943396226415096 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1134  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200831T032727_20200831T050856_14936_01_010302_20200901T201639.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.832  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.758e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-08-31 04:25:30.647000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "50.98831985624438 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1135  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200831T050856_20200831T065026_14937_01_010302_20200901T220156.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.03324348607367 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1136  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200901T012650_20200901T030820_14949_01_010302_20200902T181807.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.078167115902964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1137  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200901T030820_20200901T044949_14950_01_010302_20200902T200430.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.894  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.987e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-01 04:06:52.202000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.491e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.987e-01 DU\n",
      "VCD_trop:  3.047e-01 DU\n",
      "SCD:  4.836e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.123090745732256 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1138  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200901T044949_20200901T063118_14951_01_010302_20200902T215550.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.16801437556154 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1139  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200902T010743_20200902T024912_14963_01_010302_20200903T175741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.21293800539084 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1140  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200902T024912_20200902T043041_14964_01_010302_20200903T193326.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.536  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.007e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-02 03:48:19.961000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.257861635220124 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1141  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200902T043041_20200902T061211_14965_01_010302_20200903T211721.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.686  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.270e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-02 05:28:32.702000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.30278526504941 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1142  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200903T023004_20200903T041134_14978_01_010302_20200904T190109.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.34770889487871 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1143  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200903T041134_20200903T055303_14979_01_010302_20200904T204906.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.316  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.028e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-03 05:09:31.425000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.146e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.028e-01 DU\n",
      "VCD_trop:  8.710e-02 DU\n",
      "SCD:  4.499e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.39263252470799 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1144  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200904T021057_20200904T035226_14992_01_010302_20200905T185314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.43755615453729 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1145  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200904T035226_20200904T053356_14993_01_010302_20200905T205023.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.752  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.198e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-04 04:50:35.069000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.951e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.198e-01 DU\n",
      "VCD_trop:  2.069e-01 DU\n",
      "SCD:  4.835e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.482479784366575 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1146  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200904T053356_20200904T071525_14994_01_010302_20200905T223932.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.527403414195874 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1147  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200905T015149_20200905T033319_15006_01_010302_20200906T184553.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.57232704402516 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1148  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200905T033319_20200905T051448_15007_01_010302_20200906T201442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.865  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.196e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-05 04:31:46.876000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.61725067385444 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1149  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200905T051448_20200905T065618_15008_01_010302_20200906T215405.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.66217430368374 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1150  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200906T013242_20200906T031411_15020_01_010302_20200907T182003.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.707097933513026 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1151  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200906T031411_20200906T045540_15021_01_010302_20200907T195936.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.575  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.485e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-06 04:13:06.485000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.75202156334232 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1152  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200906T045540_20200906T063710_15022_01_010302_20200907T213440.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.79694519317161 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1153  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200907T011334_20200907T025503_15034_01_010302_20200908T180053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.8418688230009 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1154  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200907T025503_20200907T043633_15035_01_010302_20200908T192739.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.401  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.312e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-07 03:54:31.976000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.886792452830186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1155  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200907T043633_20200907T061802_15036_01_010302_20200908T211926.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.777  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.937e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-07 05:34:56.478000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "51.93171608265948 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1156  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200908T005426_20200908T023555_15048_01_010302_20200910T133655.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "51.97663971248877 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1157  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200908T023555_20200908T041725_15049_01_010302_20200910T134637.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.894  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.861e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-08 03:36:01.906000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.667e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.861e-01 DU\n",
      "VCD_trop:  1.676e-01 DU\n",
      "SCD:  6.248e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.02156334231805 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1158  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200908T041725_20200908T055854_15050_01_010302_20200910T134245.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.548  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.356e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-08 05:15:53.769000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.060e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.356e-01 DU\n",
      "VCD_trop:  2.122e-01 DU\n",
      "SCD:  6.691e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.06648697214735 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1159  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200909T021648_20200909T035817_15063_01_010302_20200910T190343.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.11141060197664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1160  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200909T035817_20200909T053946_15064_01_010302_20200910T205725.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.161  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.061e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-09 04:56:54.961000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.156334231805936 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1161  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200909T053946_20200909T072116_15065_01_010302_20200910T222453.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.20125786163522 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1162  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200910T015740_20200910T033909_15077_01_010302_20200911T183614.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.246181491464505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1163  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200910T033909_20200910T052038_15078_01_010302_20200911T203841.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.199  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.726e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-10 04:38:03.894000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.2911051212938 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1164  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200910T052038_20200910T070208_15079_01_010302_20200911T215158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.33602875112309 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1165  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200911T013832_20200911T032001_15091_01_010302_20200912T180611.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.38095238095239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1166  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200911T032001_20200911T050131_15092_01_010302_20200912T200938.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.971  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.717e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-11 04:19:20.630000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.42587601078167 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1167  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200911T050131_20200911T064300_15093_01_010302_20200912T213944.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.47079964061096 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1168  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200912T011924_20200912T030053_15105_01_010302_20200913T174821.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.51572327044025 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1169  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200912T030053_20200912T044223_15106_01_010302_20200913T193949.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.074  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.111e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-12 04:00:44.686000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.56064690026954 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1170  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200912T044223_20200912T062352_15107_01_010302_20200913T212621.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.60557053009883 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1171  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200913T010016_20200913T024145_15119_01_010302_20200914T173551.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.650494159928115 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1172  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200913T024145_20200913T042315_15120_01_010302_20200914T192457.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.364  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.356e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-13 03:42:13.423000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.505e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.356e-01 DU\n",
      "VCD_trop:  1.328e-01 DU\n",
      "SCD:  5.260e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.695417789757414 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1173  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200913T042315_20200913T060444_15121_01_010302_20200914T211816.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "52.7403414195867 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1174  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200914T022237_20200914T040407_15134_01_010302_20200915T185655.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.785265049416 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1175  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200914T040407_20200914T054536_15135_01_010302_20200915T204739.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.872  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.940e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-14 05:03:15.305000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.83018867924528 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1176  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200914T054536_20200914T072705_15136_01_010302_20200915T223134.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.87511230907457 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1177  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200915T020329_20200915T034459_15148_01_010302_20200916T180814.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "52.920035938903865 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1178  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200915T034459_20200915T052628_15149_01_010302_20200916T203048.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.507  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.385e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-15 04:44:22.325000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "52.96495956873315 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1179  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200915T052628_20200915T070757_15150_01_010302_20200916T222653.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.00988319856245 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1180  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200916T014421_20200916T032550_15162_01_010302_20200917T181322.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.05480682839173 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1181  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200916T032550_20200916T050720_15163_01_010302_20200917T201120.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.832  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.963e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-16 04:25:35.987000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.09973045822103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1182  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200916T050720_20200916T064849_15164_01_010302_20200917T221028.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.144654088050316 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1183  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200917T012513_20200917T030642_15176_01_010302_20200918T175358.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.1895777178796 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1184  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200917T030642_20200917T044812_15177_01_010302_20200918T195438.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.937  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.177e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-17 04:06:58.010000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.23450134770889 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1185  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200917T044812_20200917T062941_15178_01_010302_20200918T213229.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.279424977538184 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1186  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200918T010605_20200918T024734_15190_01_010302_20200919T172618.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.324348607367476 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1187  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200918T024734_20200918T042904_15191_01_010302_20200919T192535.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.442  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.270e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-18 03:48:25.315000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.055e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.270e-01 DU\n",
      "VCD_trop:  2.246e-01 DU\n",
      "SCD:  6.217e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.36927223719676 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1188  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200918T042904_20200918T061033_15192_01_010302_20200919T211653.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.943  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.596e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-18 05:28:38.058000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.568e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.596e-01 DU\n",
      "VCD_trop:  1.503e-01 DU\n",
      "SCD:  5.810e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.41419586702606 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1189  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200919T022826_20200919T040955_15205_01_010302_20200920T185535.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.459119496855344 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1190  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200919T040955_20200919T055125_15206_01_010302_20200920T210120.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.733  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.292e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-19 05:09:36.687000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.644e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.292e-01 DU\n",
      "VCD_trop:  3.214e-01 DU\n",
      "SCD:  6.603e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.50404312668463 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1191  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200920T020918_20200920T035047_15219_01_010302_20200921T184220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.54896675651393 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1192  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200920T035047_20200920T053217_15220_01_010302_20200921T204052.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.214  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.179e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-20 04:50:41.196000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.090e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.179e-01 DU\n",
      "VCD_trop:  2.035e-01 DU\n",
      "SCD:  4.949e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.59389038634321 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1193  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200920T053217_20200920T071346_15221_01_010302_20200921T225800.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.63881401617251 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1194  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200921T015010_20200921T033139_15233_01_010302_20200922T181836.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.683737646001795 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1195  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200921T033139_20200921T051308_15234_01_010302_20200922T203402.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.876  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.690e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-21 04:31:52.217000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.752e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.690e-01 DU\n",
      "VCD_trop:  5.549e-01 DU\n",
      "SCD:  8.106e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.728661275831094 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1196  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200921T051308_20200921T065438_15235_01_010302_20200922T224232.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.77358490566038 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1197  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200922T013101_20200922T031231_15247_01_010302_20200923T180441.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.81850853548967 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1198  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200922T031231_20200922T045400_15248_01_010302_20200923T200440.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.202  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.633e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-22 04:13:11.368000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.163e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.633e-01 DU\n",
      "VCD_trop:  3.607e-01 DU\n",
      "SCD:  6.328e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.86343216531896 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1199  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200922T045400_20200922T063529_15249_01_010302_20200923T220423.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.908355795148246 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1200  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200923T011153_20200923T025322_15261_01_010302_20200924T172736.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "53.95327942497754 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1201  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200923T025322_20200923T043452_15262_01_010302_20200924T192627.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.950  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.245e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-23 03:54:36.998000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "53.99820305480682 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1202  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200923T043452_20200923T061621_15263_01_010302_20200924T214339.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.741  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.947e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-23 05:35:01.862000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.04312668463612 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1203  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200924T005245_20200924T023414_15275_01_010302_20200925T171336.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.088050314465406 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1204  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200924T023414_20200924T041543_15276_01_010302_20200925T190527.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   41.723  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.808e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-24 03:36:07.789000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.704e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.808e-01 DU\n",
      "VCD_trop:  1.936e-01 DU\n",
      "SCD:  5.030e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.132973944294704 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1205  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200924T041543_20200924T055713_15277_01_010302_20200925T212309.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.929  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.107e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-24 05:15:58.454000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.17789757412399 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1206  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200925T021506_20200925T035635_15290_01_010302_20200926T184709.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.22282120395327 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1207  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200925T035635_20200925T053804_15291_01_010302_20200926T210532.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.314  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.941e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-25 04:57:00.327000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.26774483378257 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1208  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200925T053804_20200925T071934_15292_01_010302_20200926T224930.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.31266846361186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1209  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200926T015557_20200926T033727_15304_01_010302_20200927T180615.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.357592093441156 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1210  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200926T033727_20200926T051856_15305_01_010302_20200927T205939.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.043  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.273e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-26 04:38:08.924000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.40251572327044 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1211  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200926T051856_20200926T070026_15306_01_010302_20200927T224601.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.44743935309974 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1212  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200927T013649_20200927T031818_15318_01_010302_20200928T173651.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.49236298292902 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1213  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200927T031818_20200927T045948_15319_01_010302_20200928T202503.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.001  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.748e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-27 04:19:26.042000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.756e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.748e-01 DU\n",
      "VCD_trop:  1.769e-01 DU\n",
      "SCD:  4.181e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.53728661275831 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1214  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200927T045948_20200927T064117_15320_01_010302_20200928T223117.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.58221024258761 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1215  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200928T011741_20200928T025910_15332_01_010302_20200929T173402.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.62713387241689 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1216  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200928T025910_20200928T044039_15333_01_010302_20200929T200908.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.504  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.321e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-28 04:00:49.400000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.67205750224618 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1217  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200928T044039_20200928T062209_15334_01_010302_20200929T215847.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.71698113207547 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1218  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200929T005832_20200929T024002_15346_01_010302_20200930T170920.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.761904761904766 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1219  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200929T024002_20200929T042131_15347_01_010302_20200930T193531.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.695  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.305e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-29 03:42:18.159000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.80682839173405 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1220  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200929T042131_20200929T060300_15348_01_010302_20200930T211735.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.813  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.867e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-29 05:22:20.944000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.851752021563335 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1221  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200930T022053_20200930T040223_15361_01_010302_20201001T185853.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.896675651392634 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1222  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200930T040223_20200930T054352_15362_01_010302_20201001T211205.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.618  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.005e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-09-30 05:03:20.545000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "54.94159928122192 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1223  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20200930T054352_20200930T072521_15363_01_010302_20201001T231734.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "54.98652291105122 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1224  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201001T020145_20201001T034314_15375_01_010302_20201002T182701.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.0314465408805 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1225  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201001T034314_20201001T052443_15376_01_010302_20201002T204552.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.660  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.111e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-01 04:44:26.989000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.0763701707098 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1226  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201001T052443_20201001T070613_15377_01_010302_20201002T224439.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.121293800539085 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1227  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201002T014236_20201002T032405_15389_01_010302_20201003T180039.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.16621743036837 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1228  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201002T032405_20201002T050535_15390_01_010302_20201003T201141.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.807  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.830e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-02 04:25:40.738000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.21114106019767 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1229  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201002T050535_20201002T064704_15391_01_010302_20201003T221030.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.25606469002695 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1230  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201003T012328_20201003T030457_15403_01_010302_20201004T175518.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.300988319856245 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1231  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201003T030457_20201003T044627_15404_01_010302_20201004T193827.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.071  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.863e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-03 04:07:02.421000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.34591194968554 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1232  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201003T044627_20201003T062756_15405_01_010302_20201004T215348.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.39083557951483 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1233  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201004T010419_20201004T024549_15417_01_010302_20201005T172743.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.43575920934411 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1234  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201004T024549_20201004T042718_15418_01_010302_20201005T191541.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.622  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.172e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-04 03:48:30.433000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.4806828391734 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1235  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201004T042718_20201004T060848_15419_01_010302_20201005T213618.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.786  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.533e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-04 05:28:43.658000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.525606469002696 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1236  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201005T022641_20201005T040810_15432_01_010302_20201006T184334.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.57053009883198 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1237  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201005T040810_20201005T054939_15433_01_010302_20201006T212812.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.455  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.832e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-05 05:09:41.704000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.766e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.832e-01 DU\n",
      "VCD_trop:  1.801e-01 DU\n",
      "SCD:  5.471e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.61545372866128 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1238  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201006T020732_20201006T034902_15446_01_010302_20201007T185743.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.660377358490564 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1239  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201006T034902_20201006T053031_15447_01_010302_20201007T205143.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.055  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.824e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-06 04:50:45.994000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.109e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.824e-01 DU\n",
      "VCD_trop:  4.833e-01 DU\n",
      "SCD:  7.012e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.70530098831986 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1240  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201006T053031_20201006T071200_15448_01_010302_20201007T224359.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.75022461814915 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1241  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201007T014824_20201007T032953_15460_01_010302_20201008T184530.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.79514824797843 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1242  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201007T032953_20201007T051123_15461_01_010302_20201008T202603.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.209  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.504e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-07 04:31:57.959000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.680e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.504e-01 DU\n",
      "VCD_trop:  6.576e-01 DU\n",
      "SCD:  6.418e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.84007187780773 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1243  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201007T051123_20201007T065252_15462_01_010302_20201008T221815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.884995507637015 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1244  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201008T012916_20201008T031045_15474_01_010302_20201009T182911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "55.929919137466314 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1245  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201008T031045_20201008T045214_15475_01_010302_20201009T195553.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.028  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.744e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-08 04:13:17.006000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.475e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.744e-01 DU\n",
      "VCD_trop:  2.875e-01 DU\n",
      "SCD:  5.482e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "55.9748427672956 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1246  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201008T045214_20201008T063344_15476_01_010302_20201009T214410.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.01976639712489 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1247  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201009T011007_20201009T025137_15488_01_010302_20201010T180230.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.06469002695418 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1248  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201009T025137_20201009T043306_15489_01_010302_20201010T194309.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.541  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.655e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-09 03:54:42.535000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.670e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.655e-01 DU\n",
      "VCD_trop:  1.805e-01 DU\n",
      "SCD:  4.929e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.109613656783466 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1249  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201009T043306_20201009T061435_15490_01_010302_20201010T214941.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.526  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.474e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-09 05:35:07.640000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.221e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.474e-01 DU\n",
      "VCD_trop:  2.542e-01 DU\n",
      "SCD:  7.244e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.15453728661276 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1250  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201010T005059_20201010T023228_15502_01_010302_20201011T174849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.19946091644204 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1251  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201010T023228_20201010T041358_15503_01_010302_20201011T191549.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.991  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.283e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-10 03:36:12.988000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.096e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.283e-01 DU\n",
      "VCD_trop:  4.451e-01 DU\n",
      "SCD:  6.381e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.24438454627134 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1252  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201010T041358_20201010T055527_15504_01_010302_20201011T210823.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.395  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.759e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-10 05:16:04.014000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.289308176100626 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1253  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201011T021320_20201011T035449_15517_01_010302_20201012T184115.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.334231805929925 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1254  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201011T035449_20201011T053619_15518_01_010302_20201012T210731.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.210  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.653e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-11 04:57:05.788000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.37915543575921 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1255  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201011T053619_20201011T071748_15519_01_010302_20201012T225414.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.424079065588494 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1256  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201012T015412_20201012T033541_15531_01_010302_20201013T182152.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.46900269541779 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1257  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201012T033541_20201012T051710_15532_01_010302_20201013T203343.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.174  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.330e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-12 04:38:15.004000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.51392632524708 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1258  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201012T051710_20201012T065840_15533_01_010302_20201013T222010.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.558849955076376 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1259  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201013T013503_20201013T031633_15545_01_010302_20201014T180445.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.60377358490566 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1260  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201013T031633_20201013T045802_15546_01_010302_20201014T201349.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.928  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.326e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-13 04:19:31.300000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.64869721473495 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1261  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201013T045802_20201013T063931_15547_01_010302_20201014T220901.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.693620844564244 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1262  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201014T011555_20201014T025724_15559_01_010302_20201015T180035.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.73854447439353 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1263  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201014T025724_20201014T043854_15560_01_010302_20201015T200445.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.690  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.820e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-14 04:00:55.636000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.78346810422282 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1264  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201014T043854_20201014T062023_15561_01_010302_20201015T214013.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.82839173405211 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1265  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201015T005647_20201015T023816_15573_01_010302_20201016T173038.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "56.8733153638814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1266  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201015T023816_20201015T041945_15574_01_010302_20201016T192141.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.809  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.103e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-15 03:42:24.295000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.663e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.103e+00 DU\n",
      "VCD_trop:  1.015e+00 DU\n",
      "SCD:  8.922e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.91823899371069 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1267  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201015T041945_20201015T060115_15575_01_010302_20201016T211056.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.589  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.176e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-15 05:22:27.201000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.480e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.176e+00 DU\n",
      "VCD_trop:  1.081e+00 DU\n",
      "SCD:  8.683e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "56.963162623539986 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1268  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201016T021908_20201016T040037_15588_01_010302_20201017T184952.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.00808625336927 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1269  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201016T040037_20201016T054207_15589_01_010302_20201017T211053.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.546  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.093e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-16 05:03:26.579000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.053009883198555 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1270  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201016T054207_20201016T072336_15590_01_010302_20201017T224919.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.097933513027854 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1271  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201017T020000_20201017T034129_15602_01_010302_20201018T183105.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.14285714285714 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1272  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201017T034129_20201017T052258_15603_01_010302_20201018T203737.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.815  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.090e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-17 04:44:33.369000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.846e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.090e-01 DU\n",
      "VCD_trop:  4.038e-01 DU\n",
      "SCD:  6.983e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.18778077268644 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1273  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201017T052258_20201017T070428_15604_01_010302_20201018T222758.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.23270440251572 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1274  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201018T014052_20201018T032221_15616_01_010302_20201019T181157.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.27762803234502 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1275  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201018T032221_20201018T050350_15617_01_010302_20201019T201517.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.905  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.173e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-18 04:25:47.029000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.198e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.173e-01 DU\n",
      "VCD_trop:  3.126e-01 DU\n",
      "SCD:  7.517e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.322551662174305 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1276  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201018T050350_20201018T064520_15618_01_010302_20201019T222806.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.36747529200359 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1277  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201019T012143_20201019T030313_15630_01_010302_20201020T181455.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.41239892183289 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1278  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201019T030313_20201019T044442_15631_01_010302_20201020T195225.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.370  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.011e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-19 04:07:08.370000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.396e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.011e+00 DU\n",
      "VCD_trop:  9.097e-01 DU\n",
      "SCD:  1.741e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.45732255166217 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1279  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201019T044442_20201019T062611_15632_01_010302_20201020T220545.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.502246181491465 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1280  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201020T010235_20201020T024405_15644_01_010302_20201021T174816.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.54716981132076 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1281  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201020T024405_20201020T042534_15645_01_010302_20201021T192241.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.377  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.691e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-20 03:48:36.312000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.760e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.691e-01 DU\n",
      "VCD_trop:  8.764e-01 DU\n",
      "SCD:  1.569e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.59209344115005 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1282  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201020T042534_20201020T060703_15646_01_010302_20201021T213347.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.718  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.091e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-20 05:28:50.258000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.021e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.091e+00 DU\n",
      "VCD_trop:  9.905e-01 DU\n",
      "SCD:  1.670e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.63701707097933 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1283  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201021T022456_20201021T040626_15659_01_010302_20201022T190849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.68194070080862 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1284  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201021T040626_20201021T054755_15660_01_010302_20201022T211159.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "57.726864330637916 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1285  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201022T020548_20201022T034718_15673_01_010302_20201023T183911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.7717879604672 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1286  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201022T034718_20201022T052847_15674_01_010302_20201023T205346.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.146  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.360e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-22 04:50:52.022000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.406e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.360e-01 DU\n",
      "VCD_trop:  2.390e-01 DU\n",
      "SCD:  5.379e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.8167115902965 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1287  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201022T052847_20201022T071017_15675_01_010302_20201023T223505.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.861635220125784 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1288  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201023T014640_20201023T032810_15687_01_010302_20201024T182158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.90655884995508 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1289  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201023T032810_20201023T050939_15688_01_010302_20201024T201944.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.701  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.807e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-23 04:32:03.527000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.294e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.807e-01 DU\n",
      "VCD_trop:  3.802e-01 DU\n",
      "SCD:  6.912e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "57.95148247978437 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1290  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201023T050939_20201023T065109_15689_01_010302_20201024T221419.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "57.99640610961365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1291  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201024T012732_20201024T030902_15701_01_010302_20201025T174806.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.04132973944295 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1292  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201024T030902_20201024T045031_15702_01_010302_20201025T200658.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.749  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.727e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-24 04:13:22.952000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.739e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.727e-01 DU\n",
      "VCD_trop:  1.771e-01 DU\n",
      "SCD:  4.766e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.086253369272235 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1293  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201024T045031_20201024T063201_15703_01_010302_20201025T221646.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.13117699910153 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1294  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201025T010824_20201025T024954_15715_01_010302_20201026T174544.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.17610062893082 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1295  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201025T024954_20201025T043123_15716_01_010302_20201026T193014.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.799  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.188e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-25 03:54:48.257000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.22102425876011 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1296  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201025T043123_20201025T061253_15717_01_010302_20201026T215548.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.598  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.939e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-25 05:35:13.604000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.534e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.939e-01 DU\n",
      "VCD_trop:  2.921e-01 DU\n",
      "SCD:  5.937e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.265947888589395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1297  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201026T004916_20201026T023046_15729_01_010302_20201027T172708.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.310871518418686 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1298  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201026T023046_20201026T041215_15730_01_010302_20201027T190544.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.371  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.402e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-26 03:36:18.723000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.600e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.402e+00 DU\n",
      "VCD_trop:  2.305e+00 DU\n",
      "SCD:  2.144e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.35579514824798 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1299  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201026T041215_20201026T055345_15731_01_010302_20201027T213549.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.844  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.521e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-26 05:16:10.229000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.394e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.521e+00 DU\n",
      "VCD_trop:  1.418e+00 DU\n",
      "SCD:  1.080e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.40071877807726 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1300  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201027T021138_20201027T035307_15744_01_010302_20201028T184235.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.44564240790656 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1301  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201027T035307_20201027T053437_15745_01_010302_20201028T205233.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.345  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.525e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-27 04:57:12.255000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.385e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.525e+00 DU\n",
      "VCD_trop:  1.425e+00 DU\n",
      "SCD:  2.554e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.490566037735846 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1302  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201027T053437_20201027T071606_15746_01_010302_20201028T224317.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.535489667565145 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1303  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201028T015230_20201028T033400_15758_01_010302_20201029T184114.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.58041329739443 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1304  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201028T033400_20201028T051529_15759_01_010302_20201029T203755.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.579  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.068e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-28 04:38:20.881000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.625336927223714 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1305  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201028T051529_20201028T065659_15760_01_010302_20201029T220421.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.67026055705301 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1306  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201029T013323_20201029T031452_15772_01_010302_20201030T183304.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.7151841868823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1307  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201029T031452_20201029T045621_15773_01_010302_20201030T195918.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.322  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.590e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-29 04:19:36.829000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.440e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.590e-01 DU\n",
      "VCD_trop:  8.579e-01 DU\n",
      "SCD:  1.168e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.760107816711596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1308  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201029T045621_20201029T063751_15774_01_010302_20201030T221935.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.80503144654088 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1309  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201030T011415_20201030T025544_15786_01_010302_20201031T175907.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.84995507637017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1310  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201030T025544_20201030T043714_15787_01_010302_20201031T194507.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.893  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.552e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-30 04:01:00.548000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.041e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.552e-01 DU\n",
      "VCD_trop:  6.451e-01 DU\n",
      "SCD:  1.168e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "58.894878706199464 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1311  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201030T043714_20201030T061843_15788_01_010302_20201031T220912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.93980233602875 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1312  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201031T005507_20201031T023637_15800_01_010302_20201101T172954.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "58.98472596585804 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1313  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201031T023637_20201031T041806_15801_01_010302_20201101T192712.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.118  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.063e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-31 03:42:29.699000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.02964959568733 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1314  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201031T041806_20201031T055935_15802_01_010302_20201101T213703.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.450  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.472e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-10-31 05:22:32.966000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.07457322551662 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1315  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201101T021729_20201101T035858_15815_01_010302_20201102T185403.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.11949685534591 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1316  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201101T035858_20201101T054028_15816_01_010302_20201102T210433.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.605  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.755e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-01 05:03:32.837000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.16442048517521 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1317  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201101T054028_20201101T072157_15817_01_010302_20201102T230430.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.20934411500449 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1318  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201102T015822_20201102T033951_15829_01_010302_20201103T182912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.254267744833776 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1319  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201102T033951_20201102T052120_15830_01_010302_20201103T204859.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.838  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.311e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-02 04:44:38.350000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.111e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.311e-01 DU\n",
      "VCD_trop:  3.345e-01 DU\n",
      "SCD:  6.483e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.299191374663074 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1320  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201102T052120_20201102T070250_15831_01_010302_20201103T224324.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.34411500449236 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1321  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201103T013914_20201103T032044_15843_01_010302_20201104T175259.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.38903863432166 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1322  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201103T032044_20201103T050213_15844_01_010302_20201104T202807.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.302  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.641e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-03 04:25:52.301000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.656e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.641e-01 DU\n",
      "VCD_trop:  1.743e-01 DU\n",
      "SCD:  5.022e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.43396226415094 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1323  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201103T050213_20201103T064342_15845_01_010302_20201104T221714.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.47888589398024 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1324  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201104T012007_20201104T030136_15857_01_010302_20201105T173458.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.523809523809526 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1325  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201104T030136_20201104T044306_15858_01_010302_20201105T201017.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.183  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.552e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-04 04:07:13.652000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.467e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.552e-01 DU\n",
      "VCD_trop:  2.721e-01 DU\n",
      "SCD:  5.758e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.56873315363881 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1326  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201104T044306_20201104T062435_15859_01_010302_20201105T215959.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.6136567834681 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1327  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201105T010059_20201105T024229_15871_01_010302_20201106T172146.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.65858041329739 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1328  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201105T024229_20201105T042358_15872_01_010302_20201106T193343.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.821  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.774e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-05 03:48:41.245000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.924e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.774e-01 DU\n",
      "VCD_trop:  9.022e-01 DU\n",
      "SCD:  1.416e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.703504043126685 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1329  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201105T042358_20201105T060528_15873_01_010302_20201106T215007.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.816  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.615e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-05 05:28:55.432000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.018e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.615e+00 DU\n",
      "VCD_trop:  1.532e+00 DU\n",
      "SCD:  1.044e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.74842767295597 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1330  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201106T004152_20201106T022322_15885_01_010302_20201107T171053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.79335130278527 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1331  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201106T022322_20201106T040451_15886_01_010302_20201107T191936.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "59.83827493261455 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1332  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201106T040451_20201106T054621_15887_01_010302_20201107T211657.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.754  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.352e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-06 05:09:53.509000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.88319856244384 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1333  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201107T020415_20201107T034544_15900_01_010302_20201108T185446.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "59.928122192273136 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1334  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201107T034544_20201107T052713_15901_01_010302_20201108T211518.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.330  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.900e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-07 04:50:57.348000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.233e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.900e-01 DU\n",
      "VCD_trop:  5.081e-01 DU\n",
      "SCD:  9.253e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "59.97304582210242 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1335  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201107T052713_20201107T070843_15902_01_010302_20201108T225517.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.01796945193172 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1336  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201108T032637_20201108T050806_15915_01_010302_20201109T204006.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.333  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.451e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-08 04:32:08.147000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.621e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.451e-01 DU\n",
      "VCD_trop:  1.565e-01 DU\n",
      "SCD:  4.376e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.062893081761004 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1337  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201108T050806_20201108T064936_15916_01_010302_20201109T223254.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.1078167115903 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1338  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201109T012601_20201109T030730_15928_01_010302_20201110T181524.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.15274034141959 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1339  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201109T030730_20201109T044859_15929_01_010302_20201110T201442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.518  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.935e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-09 04:13:27.707000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.19766397124887 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1340  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201109T044859_20201109T063029_15930_01_010302_20201110T221036.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.24258760107817 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1341  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201110T010654_20201110T024823_15942_01_010302_20201111T180025.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.287511230907455 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1342  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201110T024823_20201110T042953_15943_01_010302_20201111T200050.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.896  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.311e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-10 03:54:52.909000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.460e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.311e-01 DU\n",
      "VCD_trop:  2.355e-01 DU\n",
      "SCD:  6.405e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.33243486073675 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1343  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201110T042953_20201110T061122_15944_01_010302_20201111T215129.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.239  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.103e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-10 05:35:18.496000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.408e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.103e-01 DU\n",
      "VCD_trop:  2.042e-01 DU\n",
      "SCD:  7.271e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.37735849056604 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1344  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201111T004747_20201111T022916_15956_01_010302_20201112T175153.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.42228212039533 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1345  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201111T022916_20201111T041046_15957_01_010302_20201112T194232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.438  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.988e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-11 03:36:22.732000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.985e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.988e-01 DU\n",
      "VCD_trop:  4.995e-01 DU\n",
      "SCD:  1.093e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.467205750224615 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1346  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201111T041046_20201111T055215_15958_01_010302_20201112T211707.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   45.271  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.063e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-11 05:16:15.320000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.414e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.063e+00 DU\n",
      "VCD_trop:  9.612e-01 DU\n",
      "SCD:  1.433e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.512129380053906 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1347  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201112T021010_20201112T035139_15971_01_010302_20201113T191957.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.5570530098832 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1348  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201112T035139_20201112T053309_15972_01_010302_20201113T211355.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.097  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.106e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-12 04:57:17.124000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.898e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.106e+00 DU\n",
      "VCD_trop:  2.012e+00 DU\n",
      "SCD:  2.722e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.60197663971248 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1349  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201112T053309_20201112T071438_15973_01_010302_20201113T225546.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.64690026954178 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1350  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201113T015103_20201113T033232_15985_01_010302_20201114T184351.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.691823899371066 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1351  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201113T033232_20201113T051402_15986_01_010302_20201114T204554.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   43.901  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.404e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-13 04:38:25.286000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.147e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.404e-01 DU\n",
      "VCD_trop:  7.446e-01 DU\n",
      "SCD:  1.499e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.736747529200365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1352  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201113T051402_20201113T065532_15987_01_010302_20201114T222718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.78167115902965 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1353  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201114T013157_20201114T031326_15999_01_010302_20201115T181033.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.82659478885895 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1354  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201114T031326_20201114T045455_16000_01_010302_20201115T202755.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   44.479  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.973e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-14 04:19:41.368000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.047e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.973e-01 DU\n",
      "VCD_trop:  4.024e-01 DU\n",
      "SCD:  7.647e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "60.87151841868823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1355  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201114T045455_20201114T063625_16001_01_010302_20201115T221234.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.91644204851752 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1356  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201115T011250_20201115T025420_16013_01_010302_20201116T180645.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "60.961365678346816 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1357  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201115T025420_20201115T043549_16014_01_010302_20201116T194804.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   45.246  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.390e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-15 04:01:04.890000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.0062893081761 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1358  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201115T043549_20201115T061719_16015_01_010302_20201117T111700.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.05121293800539 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1359  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201116T005344_20201116T023513_16027_01_010302_20201117T174315.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.09613656783468 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1360  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201116T023513_20201116T041643_16028_01_010302_20201118T115715.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.470  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.797e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-16 03:42:34.053000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.687e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.797e-01 DU\n",
      "VCD_trop:  4.897e-01 DU\n",
      "SCD:  1.286e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.141060197663975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1361  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201116T041643_20201116T055812_16029_01_010302_20201118T120108.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   42.277  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.791e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-16 05:22:37.560000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.374e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.791e-01 DU\n",
      "VCD_trop:  5.832e-01 DU\n",
      "SCD:  1.258e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.18598382749326 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1362  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201117T021607_20201117T035737_16042_01_010302_20201118T185626.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.230907457322544 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1363  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201117T035737_20201117T053906_16043_01_010302_20201118T210446.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.296  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.830e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-17 05:03:36.844000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.27583108715184 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1364  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201117T053906_20201117T072036_16044_01_010302_20201118T225748.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.32075471698113 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1365  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201118T015701_20201118T033831_16056_01_010302_20201119T185805.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.36567834681043 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1366  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201118T033831_20201118T052000_16057_01_010302_20201119T202208.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.979  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.417e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-18 04:44:42.607000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.41060197663971 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1367  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201118T052000_20201118T070130_16058_01_010302_20201119T224510.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.45552560646901 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1368  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201119T013755_20201119T031925_16070_01_010302_20201120T182822.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.500449236298294 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1369  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201119T031925_20201119T050054_16071_01_010302_20201120T200149.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.224  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.448e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-19 04:25:56.412000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.54537286612758 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1370  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201119T050054_20201119T064224_16072_01_010302_20201120T221710.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.59029649595688 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1371  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201120T011849_20201120T030019_16084_01_010302_20201121T175115.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.63522012578616 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1372  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201120T030019_20201120T044148_16085_01_010302_20201121T194429.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.837  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.616e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-20 04:07:17.897000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.68014375561546 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1373  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201120T044148_20201120T062318_16086_01_010302_20201121T214920.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.725067385444746 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1374  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201121T005943_20201121T024113_16098_01_010302_20201122T174711.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.76999101527404 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1375  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201121T024113_20201121T042242_16099_01_010302_20201122T192100.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.028  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.311e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-21 03:48:45.140000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.81491464510332 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1376  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201121T042242_20201121T060412_16100_01_010302_20201122T212232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.253  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.936e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-21 05:28:59.328000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.85983827493261 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1377  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201122T004038_20201122T022207_16112_01_010302_20201123T173144.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "61.904761904761905 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1378  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201122T022207_20201122T040337_16113_01_010302_20201123T191118.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "61.94968553459119 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1379  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201122T040337_20201122T054506_16114_01_010302_20201123T212043.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.448  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.408e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-22 05:09:57.535000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "61.99460916442049 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1380  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201123T020302_20201123T034431_16127_01_010302_20201124T184857.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.03953279424977 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1381  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201123T034431_20201123T052601_16128_01_010302_20201124T211128.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.799  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.451e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-23 04:51:01.622000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.673e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.451e-01 DU\n",
      "VCD_trop:  5.724e-01 DU\n",
      "SCD:  8.499e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.08445642407907 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1382  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201123T052601_20201123T070730_16129_01_010302_20201124T222849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.129380053908356 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1383  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201124T014356_20201124T032526_16141_01_010302_20201125T183200.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.17430368373764 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1384  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201124T032526_20201124T050655_16142_01_010302_20201125T202335.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.992  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.452e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-24 04:32:12.612000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.21922731356694 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1385  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201124T050655_20201124T064825_16143_01_010302_20201125T222831.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.264150943396224 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1386  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201125T012451_20201125T030621_16155_01_010302_20201126T181816.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.30907457322552 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1387  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201125T030621_20201125T044750_16156_01_010302_20201126T194809.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.405  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.506e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-25 04:13:31.341000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.976e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.506e-01 DU\n",
      "VCD_trop:  8.676e-01 DU\n",
      "SCD:  1.644e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.35399820305481 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1388  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201125T044750_20201125T062920_16157_01_010302_20201126T221701.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.3989218328841 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1389  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201126T010546_20201126T024715_16169_01_010302_20201127T174319.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.44384546271339 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1390  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201126T024715_20201126T042845_16170_01_010302_20201127T192630.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.656  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.007e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-26 03:54:57.029000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.235e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.007e+00 DU\n",
      "VCD_trop:  9.215e-01 DU\n",
      "SCD:  1.808e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.488769092542675 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1391  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201126T042845_20201126T061015_16171_01_010302_20201127T215718.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.865  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.928e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-26 05:35:22.376000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.200e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.928e+00 DU\n",
      "VCD_trop:  1.836e+00 DU\n",
      "SCD:  1.507e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.53369272237197 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1392  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201127T004641_20201127T022810_16183_01_010302_20201128T173122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.57861635220125 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1393  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201127T022810_20201127T040940_16184_01_010302_20201128T191017.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.530  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.918e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-27 03:36:26.554000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.62353998203055 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1394  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201127T040940_20201127T055110_16185_01_010302_20201128T212508.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.075  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.812e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-27 05:16:19.022000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.111e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.812e-01 DU\n",
      "VCD_trop:  1.833e-01 DU\n",
      "SCD:  7.000e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.668463611859835 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1395  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201128T020905_20201128T035035_16198_01_010302_20201129T184706.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.713387241689134 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1396  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201128T035035_20201128T053205_16199_01_010302_20201129T205518.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.552  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.757e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-28 04:57:20.829000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.309e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.757e-01 DU\n",
      "VCD_trop:  3.856e-01 DU\n",
      "SCD:  7.616e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.75831087151842 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1397  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201128T053205_20201128T071334_16200_01_010302_20201129T230845.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.8032345013477 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1398  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201129T015001_20201129T033130_16212_01_010302_20201130T184046.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.848158131177 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1399  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201129T033130_20201129T051300_16213_01_010400_20201202T200050.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.462  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.867e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-29 04:38:29.236000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "62.893081761006286 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1400  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201129T051300_20201129T065430_16214_01_010400_20201202T195656.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.938005390835585 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1401  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201130T013056_20201130T031226_16226_01_010400_20201202T200449.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "62.98292902066487 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1402  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201130T031226_20201130T045355_16227_01_010400_20201202T194723.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.615  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.743e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-11-30 04:19:45.563000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.084e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.743e-01 DU\n",
      "VCD_trop:  5.896e-01 DU\n",
      "SCD:  1.066e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.02785265049417 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1403  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201130T045355_20201130T063525_16228_01_010400_20201202T200249.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.07277628032345 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1404  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201201T011151_20201201T025321_16240_01_010400_20201203T100229.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.11769991015274 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1405  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201201T025321_20201201T043451_16241_01_010400_20201203T111200.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.106  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.584e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-01 04:01:08.249000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.916e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.584e-01 DU\n",
      "VCD_trop:  8.745e-01 DU\n",
      "SCD:  1.184e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.162623539982036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1406  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201201T043451_20201201T061620_16242_01_010400_20201203T150917.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.20754716981132 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1407  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201202T005247_20201202T023417_16254_01_010400_20201204T005446.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.25247079964061 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1408  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201202T023417_20201202T041546_16255_01_010400_20201204T021510.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.053  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.813e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-02 03:42:36.975000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.2973944294699 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1409  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201202T041546_20201202T055716_16256_01_010400_20201204T022408.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.382  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.983e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-02 05:22:41.083000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.342318059299195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1410  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201203T021512_20201203T035642_16269_01_010400_20201204T192727.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.38724168912848 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1411  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201203T035642_20201203T053812_16270_01_010400_20201204T210625.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.078  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.509e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-03 05:03:40.490000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.829e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.509e-01 DU\n",
      "VCD_trop:  4.536e-01 DU\n",
      "SCD:  8.540e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.432165318957765 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1412  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201203T053812_20201203T071941_16271_01_010400_20201204T230624.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.47708894878706 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1413  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201204T015608_20201204T033738_16283_01_010400_20201205T184715.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.52201257861635 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1414  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201204T033738_20201204T051907_16284_01_010400_20201205T204518.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.388  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.525e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-04 04:44:47.939000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.245e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.525e-01 DU\n",
      "VCD_trop:  4.613e-01 DU\n",
      "SCD:  8.186e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.56693620844565 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1415  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201205T013704_20201205T031834_16297_01_010400_20201206T183215.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.61185983827493 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1416  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201205T031834_20201205T050003_16298_01_010400_20201206T202445.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.563  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.775e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-05 04:26:00.191000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.65678346810423 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1417  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201205T050003_20201205T064133_16299_01_010400_20201206T223820.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.701707097933514 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1418  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201206T011800_20201206T025930_16311_01_010400_20201207T180816.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.7466307277628 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1419  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201206T025930_20201206T044100_16312_01_010400_20201207T195915.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.625  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.939e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-06 04:07:21.081000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.176e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.939e-01 DU\n",
      "VCD_trop:  7.039e-01 DU\n",
      "SCD:  1.080e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.7915543575921 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1420  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201206T044100_20201206T062229_16313_01_010400_20201207T220617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.83647798742138 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1421  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201207T005856_20201207T024026_16325_01_010400_20201208T180527.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "63.881401617250674 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1422  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201207T024026_20201207T042156_16326_01_010400_20201208T192302.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.011  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.103e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-07 03:48:47.608000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.926325247079966 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1423  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201207T042156_20201207T060326_16327_01_010400_20201208T213429.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   20.654  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.494e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-07 05:29:03.235000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.494e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.494e-01 DU\n",
      "VCD_trop:  6.462e-01 DU\n",
      "SCD:  9.980e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "63.97124887690926 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1424  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201208T003953_20201208T022123_16339_01_010400_20201209T173803.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.01617250673854 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1425  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201208T022123_20201208T040252_16340_01_010400_20201209T192129.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "64.06109613656783 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1426  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201208T040252_20201208T054422_16341_01_010400_20201209T213103.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.933  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.027e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-08 05:10:01.202000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.920e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.027e+00 DU\n",
      "VCD_trop:  9.325e-01 DU\n",
      "SCD:  1.313e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.10601976639713 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1427  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201209T020219_20201209T034349_16354_01_010400_20201210T184623.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.15094339622641 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1428  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201209T034349_20201209T052518_16355_01_010400_20201210T204817.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.460  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.443e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-09 04:51:04.808000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.19586702605571 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1429  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201209T052518_20201209T070648_16356_01_010400_20201210T225027.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.240790655885 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1430  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201210T014316_20201210T032445_16368_01_010400_20201211T184237.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.28571428571429 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1431  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201210T032445_20201210T050615_16369_01_010400_20201211T202557.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.533  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.011e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-10 04:32:15.492000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.33063791554358 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1432  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201210T050615_20201210T064745_16370_01_010400_20201211T224350.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.37556154537286 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1433  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201211T012412_20201211T030542_16382_01_010400_20201212T181114.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.42048517520216 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1434  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201211T030542_20201211T044712_16383_01_010400_20201212T201521.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.510  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.591e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-11 04:13:34.138000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.46540880503144 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1435  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201211T044712_20201211T062842_16384_01_010400_20201212T222143.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.51033243486074 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1436  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201212T010509_20201212T024639_16396_01_010400_20201213T181215.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.55525606469003 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1437  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201212T024639_20201212T042809_16397_01_010400_20201213T195819.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.947  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.731e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-12 03:54:58.864000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.330e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.731e-01 DU\n",
      "VCD_trop:  5.802e-01 DU\n",
      "SCD:  8.988e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.60017969451933 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1438  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201212T042809_20201212T060939_16398_01_010400_20201213T214548.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.859  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.380e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-12 05:35:24.812000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.002e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.380e-01 DU\n",
      "VCD_trop:  5.267e-01 DU\n",
      "SCD:  9.989e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.64510332434861 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1439  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201213T004606_20201213T022736_16410_01_010400_20201214T174214.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.6900269541779 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1440  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201213T022736_20201213T040906_16411_01_010400_20201214T195217.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.592  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.197e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-13 03:36:29.470000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.7349505840072 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1441  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201213T040906_20201213T055036_16412_01_010400_20201214T212144.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.718  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.525e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-13 05:16:22.058000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.77987421383648 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1442  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201214T020833_20201214T035003_16425_01_010400_20201215T192614.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.82479784366578 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1443  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201214T035003_20201214T053133_16426_01_010400_20201215T211102.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.118  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.366e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-14 04:57:23.263000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.858e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.366e-01 DU\n",
      "VCD_trop:  3.436e-01 DU\n",
      "SCD:  7.413e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "64.86972147349506 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1444  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201214T053133_20201214T071303_16427_01_010400_20201215T225511.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.91464510332435 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1445  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201215T014931_20201215T033100_16439_01_010400_20201216T184916.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "64.95956873315365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1446  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201215T033100_20201215T051230_16440_01_010400_20201216T205206.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.578  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.653e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-15 04:38:31.066000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.438e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.653e-01 DU\n",
      "VCD_trop:  2.667e-01 DU\n",
      "SCD:  6.618e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.00449236298293 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1447  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201215T051230_20201215T065400_16441_01_010400_20201216T230438.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.04941599281221 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1448  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201216T013028_20201216T031158_16453_01_010400_20201217T182425.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.09433962264151 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1449  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201216T031158_20201216T045328_16454_01_010400_20201217T204006.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   19.616  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.535e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-16 04:19:47.388000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.324e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.535e-01 DU\n",
      "VCD_trop:  2.566e-01 DU\n",
      "SCD:  6.460e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.1392632524708 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1450  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201216T045328_20201216T063458_16455_01_010400_20201217T224849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.18418688230008 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1451  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201217T011126_20201217T025255_16467_01_010400_20201218T181831.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.22911051212938 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1452  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201217T025255_20201217T043425_16468_01_010400_20201218T201037.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.060  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.115e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-17 04:01:10.871000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.327e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.115e-01 DU\n",
      "VCD_trop:  8.218e-01 DU\n",
      "SCD:  1.252e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.27403414195867 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1453  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201217T043425_20201217T061555_16469_01_010400_20201218T220648.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.31895777178795 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1454  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201218T005223_20201218T023353_16481_01_010400_20201219T180156.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.36388140161725 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1455  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201218T023353_20201218T041523_16482_01_010400_20201219T202633.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.336  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.804e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-18 03:42:38.834000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.689e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.804e-01 DU\n",
      "VCD_trop:  7.926e-01 DU\n",
      "SCD:  1.041e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.40880503144653 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1456  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201218T041523_20201218T055653_16483_01_010400_20201219T220700.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.650  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.462e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-18 05:22:43.182000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.758e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.462e-01 DU\n",
      "VCD_trop:  4.433e-01 DU\n",
      "SCD:  9.065e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.45372866127583 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1457  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201219T021451_20201219T035621_16496_01_010400_20201220T192700.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.49865229110512 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1458  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201219T035621_20201219T053751_16497_01_010400_20201220T210948.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.065  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.339e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-19 05:03:42.766000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.864e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.339e-01 DU\n",
      "VCD_trop:  3.305e-01 DU\n",
      "SCD:  7.532e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.54357592093442 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1459  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201219T053751_20201219T071921_16498_01_010400_20201220T231200.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.5884995507637 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1460  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201220T015549_20201220T033719_16510_01_010400_20201221T192741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.63342318059298 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1461  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201220T033719_20201220T051849_16511_01_010400_20201221T205429.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.340  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.585e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-20 04:44:48.047000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.753e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.585e-01 DU\n",
      "VCD_trop:  2.555e-01 DU\n",
      "SCD:  6.081e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.67834681042228 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1462  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201220T051849_20201220T070019_16512_01_010400_20201221T230930.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.72327044025157 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1463  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201221T013647_20201221T031817_16524_01_010400_20201224T020145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.76819407008087 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1464  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201221T031817_20201221T045947_16525_01_010400_20201224T025554.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.805  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.063e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-21 04:26:01.607000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.952e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.063e+00 DU\n",
      "VCD_trop:  9.694e-01 DU\n",
      "SCD:  1.346e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.81311769991015 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1465  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201221T045947_20201221T064117_16526_01_010400_20201224T033133.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.85804132973945 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1466  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201222T011746_20201222T025915_16538_01_010400_20201225T142344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.90296495956873 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1467  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201222T025915_20201222T044045_16539_01_010400_20201223T195859.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.710  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.489e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-22 04:07:22.487000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "65.94788858939802 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1468  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201222T044045_20201222T062215_16540_01_010400_20201223T221223.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "65.99281221922732 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1469  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201223T005844_20201223T024014_16552_01_010400_20201224T181349.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.0377358490566 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1470  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201223T024014_20201223T042144_16553_01_010400_20201224T194359.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.158  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.358e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-23 03:48:49.726000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.0826594788859 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1471  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201223T042144_20201223T060314_16554_01_010400_20201224T220058.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.488  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.613e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-23 05:29:04.993000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.12758310871519 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1472  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201224T003943_20201224T022112_16566_01_010400_20201225T174338.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.17250673854448 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1473  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201224T022112_20201224T040242_16567_01_010400_20201225T192958.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "66.21743036837377 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1474  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201224T040242_20201224T054412_16568_01_010400_20201225T213442.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.226  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.596e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-24 05:10:02.230000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.478e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.596e-01 DU\n",
      "VCD_trop:  2.559e-01 DU\n",
      "SCD:  6.778e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.26235399820305 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1475  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201225T020211_20201225T034341_16581_01_010400_20201226T190718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.30727762803235 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1476  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201225T034341_20201225T052511_16582_01_010400_20201226T211912.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.519  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.622e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-25 04:51:05.947000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.484e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.622e-01 DU\n",
      "VCD_trop:  2.618e-01 DU\n",
      "SCD:  6.374e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.35220125786164 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1477  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201225T052511_20201225T070641_16583_01_010400_20201226T230018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.39712488769092 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1478  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201226T014310_20201226T032440_16595_01_010400_20201227T184336.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.44204851752022 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1479  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201226T032440_20201226T050610_16596_01_010400_20201227T204612.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.335  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.953e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-26 04:32:16.982000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.428e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.953e+00 DU\n",
      "VCD_trop:  1.859e+00 DU\n",
      "SCD:  2.094e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.4869721473495 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1480  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201226T050610_20201226T064740_16597_01_010400_20201227T225414.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.53189577717879 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1481  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201227T012409_20201227T030539_16609_01_010400_20201228T183241.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.57681940700809 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1482  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201227T030539_20201227T044709_16610_01_010400_20201228T202032.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.275  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.391e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-27 04:13:35.137000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.62174303683737 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1483  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201227T044709_20201227T062839_16611_01_010400_20201228T222103.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.66666666666666 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1484  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201228T010508_20201228T024638_16623_01_010400_20201229T183338.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.71159029649596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1485  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201228T024638_20201228T042808_16624_01_010400_20201229T193901.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.036  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.962e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-28 03:55:00.934000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.065e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.962e+00 DU\n",
      "VCD_trop:  2.874e+00 DU\n",
      "SCD:  2.186e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.75651392632524 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1486  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201228T042808_20201228T060938_16625_01_010400_20201229T221232.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.318  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.393e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-28 05:35:26.881000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.985e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.393e+00 DU\n",
      "VCD_trop:  3.288e+00 DU\n",
      "SCD:  2.396e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.80143755615454 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1487  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201229T004607_20201229T022737_16637_01_010400_20201230T175211.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.84636118598382 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1488  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201229T022737_20201229T040907_16638_01_010400_20201230T191712.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.584  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.180e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-29 03:36:30.209000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.89128481581311 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1489  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201229T040907_20201229T055037_16639_01_010400_20201230T213129.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.093  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.402e+00\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-29 05:16:22.797000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "66.93620844564241 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1490  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201230T020837_20201230T035007_16652_01_010400_20201231T185912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "66.98113207547169 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1491  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201230T035007_20201230T053137_16653_01_010400_20201231T210837.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.463  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.109e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-30 04:57:24.112000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.077e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.109e-01 DU\n",
      "VCD_trop:  2.048e-01 DU\n",
      "SCD:  5.977e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.02605570530099 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1492  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201230T053137_20201230T071307_16654_01_010400_20201231T224737.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.07097933513027 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1493  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201231T014936_20201231T033106_16666_01_010400_20210101T185642.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.11590296495957 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1494  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201231T033106_20201231T051236_16667_01_010400_20210101T205037.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.868  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.368e-01\n",
      "\n",
      "Average time of the collocated pixels:  2020-12-31 04:38:32.986000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.16082659478886 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1495  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20201231T051236_20201231T065406_16668_01_010400_20210101T224134.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.20575022461814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1496  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210101T013036_20210101T031206_16680_01_010400_20210102T182734.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.25067385444744 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1497  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210101T031206_20210101T045336_16681_01_010400_20210102T203539.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.597  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.287e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-01 04:19:48.822000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.211e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.287e-01 DU\n",
      "VCD_trop:  8.480e-01 DU\n",
      "SCD:  1.039e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.29559748427673 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1498  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210101T045336_20210101T063506_16682_01_010400_20210102T224253.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.34052111410602 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1499  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210102T011136_20210102T025306_16694_01_010400_20210103T181536.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.38544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1500  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210102T025306_20210102T043435_16695_01_010400_20210103T200928.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.013  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.624e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-02 04:01:11.377000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.831e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.624e-01 DU\n",
      "VCD_trop:  4.781e-01 DU\n",
      "SCD:  8.448e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.43036837376461 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1501  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210102T043435_20210102T061605_16696_01_010400_20210103T222125.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.47529200359389 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1502  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210103T005236_20210103T023405_16708_01_010400_20210104T180216.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.52021563342318 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1503  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210103T023405_20210103T041535_16709_01_010400_20210104T200733.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.207  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.810e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-03 03:42:39.930000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.56513926325248 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1504  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210103T041535_20210103T055705_16710_01_010400_20210104T213918.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.562  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.082e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-03 05:22:44.277000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.61006289308176 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1505  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210104T021506_20210104T035635_16723_01_010400_20210105T191828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.65498652291106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1506  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210104T035635_20210104T053805_16724_01_010400_20210105T211653.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.668  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.323e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-04 05:03:43.430000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.69991015274034 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1507  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210104T053805_20210104T071936_16725_01_010400_20210105T225431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.74483378256963 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1508  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210105T015606_20210105T033736_16737_01_010400_20210106T190757.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.78975741239893 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1509  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210105T033736_20210105T051906_16738_01_010400_20210106T204122.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.801  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.051e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-05 04:44:49.542000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.856e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.051e-01 DU\n",
      "VCD_trop:  3.187e-01 DU\n",
      "SCD:  7.708e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.83468104222821 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1510  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210105T051906_20210105T070036_16739_01_010400_20210106T224634.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.8796046720575 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1511  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210106T013706_20210106T031836_16751_01_010400_20210107T183122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "67.9245283018868 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1512  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210106T031836_20210106T050006_16752_01_010400_20210107T204751.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.236  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.286e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-06 04:26:02.252000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.843e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.286e-01 DU\n",
      "VCD_trop:  4.417e-01 DU\n",
      "SCD:  8.364e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "67.96945193171608 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1513  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210106T050006_20210106T064136_16753_01_010400_20210107T222047.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.01437556154536 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1514  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210107T011806_20210107T025936_16765_01_010400_20210108T181343.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.05929919137466 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1515  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210107T025936_20210107T044106_16766_01_010400_20210108T201758.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.526  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.830e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-07 04:07:23.240000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.10422282120395 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1516  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210107T044106_20210107T062236_16767_01_010400_20210108T220237.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.14914645103325 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1517  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210108T005907_20210108T024037_16779_01_010400_20210109T180646.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.19407008086253 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1518  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210108T024037_20210108T042207_16780_01_010400_20210109T195033.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.443  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.090e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-08 03:48:50.108000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.451e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.090e-01 DU\n",
      "VCD_trop:  8.058e-01 DU\n",
      "SCD:  1.257e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.23899371069182 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1519  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210108T042207_20210108T060337_16781_01_010400_20210109T214905.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.689  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.719e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-08 05:29:05.135000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.976e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.719e-01 DU\n",
      "VCD_trop:  5.587e-01 DU\n",
      "SCD:  1.058e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.28391734052111 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1520  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210109T004008_20210109T022138_16793_01_010400_20210110T183221.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.3288409703504 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1521  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210109T022138_20210109T040308_16794_01_010400_20210110T193715.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "68.3737646001797 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1522  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210109T040308_20210109T054438_16795_01_010400_20210110T214150.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "68.41868823000898 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1523  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210110T020238_20210110T034408_16808_01_010400_20210111T191139.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.46361185983828 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1524  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210110T034408_20210110T052538_16809_01_010400_20210111T211521.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.352  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.609e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-10 04:51:06.550000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.50853548966757 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1525  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210110T052538_20210110T070709_16810_01_010400_20210111T225344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.55345911949685 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1526  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210111T014339_20210111T032509_16822_01_010400_20210112T184421.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.59838274932615 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1527  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210111T032509_20210111T050639_16823_01_010400_20210112T204528.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.487  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.056e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-11 04:32:17.336000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.64330637915543 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1528  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210111T050639_20210111T064809_16824_01_010400_20210112T223222.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.68823000898473 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1529  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210112T012440_20210112T030610_16836_01_010400_20210113T183600.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.73315363881402 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1530  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210112T030610_20210112T044740_16837_01_010400_20210113T200841.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.718  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.441e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-12 04:13:36.241000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.77807726864332 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1531  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210112T044740_20210112T062910_16838_01_010400_20210113T223312.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.8230008984726 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1532  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210113T010542_20210113T024712_16850_01_010400_20210114T180005.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "68.86792452830188 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1533  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210113T024712_20210113T042842_16851_01_010400_20210114T200841.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.271  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.215e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-13 03:55:00.705000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.91284815813118 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1534  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210113T042842_20210113T061012_16852_01_010400_20210114T220215.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.299  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.929e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-13 05:35:27.251000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.230e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.929e-01 DU\n",
      "VCD_trop:  5.978e-01 DU\n",
      "SCD:  9.379e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "68.95777178796047 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1535  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210114T004643_20210114T022813_16864_01_010400_20210115T175334.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.00269541778977 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1536  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210114T022813_20210114T040943_16865_01_010400_20210115T193937.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.351  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.165e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-14 03:36:30.479000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.782e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.165e+00 DU\n",
      "VCD_trop:  1.079e+00 DU\n",
      "SCD:  1.061e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.04761904761905 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1537  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210114T040943_20210114T055113_16866_01_010400_20210115T212902.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.763  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.025e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-14 05:16:23.905000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.390e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.025e+00 DU\n",
      "VCD_trop:  9.280e-01 DU\n",
      "SCD:  9.940e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.09254267744835 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1538  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210115T020914_20210115T035044_16879_01_010400_20210116T191957.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.13746630727763 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1539  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210115T035044_20210115T053214_16880_01_010400_20210116T211403.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.374  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.165e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-15 04:57:24.849000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.18238993710692 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1540  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210115T053214_20210115T071345_16881_01_010400_20210116T231045.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.2273135669362 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1541  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210116T015016_20210116T033146_16893_01_010400_20210117T183617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.2722371967655 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1542  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210116T033146_20210116T051316_16894_01_010400_20210117T205556.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.723  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.073e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-16 04:38:33.112000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.333e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.073e-01 DU\n",
      "VCD_trop:  6.102e-01 DU\n",
      "SCD:  1.166e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.31716082659479 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1543  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210116T051316_20210116T065446_16895_01_010400_20210117T223238.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.36208445642407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1544  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210117T013117_20210117T031247_16907_01_010400_20210118T184219.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.40700808625337 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1545  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210117T031247_20210117T045417_16908_01_010400_20210118T202202.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.288  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.526e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-17 04:19:48.813000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.632e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.526e-01 DU\n",
      "VCD_trop:  4.651e-01 DU\n",
      "SCD:  6.525e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.45193171608265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1546  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210117T045417_20210117T063548_16909_01_010400_20210118T221146.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.49685534591194 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1547  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210118T011219_20210118T025349_16921_01_010400_20210119T182339.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.54177897574124 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1548  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210118T025349_20210118T043519_16922_01_010400_20210119T195628.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.336  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.487e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-18 04:01:11.835000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.58670260557052 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1549  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210118T043519_20210118T061649_16923_01_010400_20210119T215143.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.63162623539982 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1550  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210119T005321_20210119T023451_16935_01_010400_20210120T173758.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.6765498652291 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1551  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210119T023451_20210119T041621_16936_01_010400_20210120T194354.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.208  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.199e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-19 03:42:40.375000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.982e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.199e+00 DU\n",
      "VCD_trop:  1.126e+00 DU\n",
      "SCD:  1.796e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.7214734950584 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1552  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210119T041621_20210119T055751_16937_01_010400_20210120T213334.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.450  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.818e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-19 05:22:44.121000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.279e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.818e+00 DU\n",
      "VCD_trop:  1.735e+00 DU\n",
      "SCD:  1.820e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.76639712488769 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1553  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210120T021553_20210120T035723_16950_01_010400_20210121T191603.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.81132075471697 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1554  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210120T035723_20210120T053853_16951_01_010400_20210121T212422.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.746  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.017e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-20 05:03:43.624000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.628e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.017e+00 DU\n",
      "VCD_trop:  9.359e-01 DU\n",
      "SCD:  1.110e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.85624438454627 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1555  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210120T053853_20210120T072023_16952_01_010400_20210121T231314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.90116801437556 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1556  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210121T015655_20210121T033825_16964_01_010400_20210122T190517.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "69.94609164420486 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1557  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210121T033825_20210121T051955_16965_01_010400_20210122T205324.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.325  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.957e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-21 04:44:49.366000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "69.99101527403414 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1558  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210121T051955_20210121T070125_16966_01_010400_20210122T225314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.03593890386344 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1559  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210122T013757_20210122T031927_16978_01_010400_20210123T184523.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.08086253369272 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1560  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210122T031927_20210122T050057_16979_01_010400_20210123T201523.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.384  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.787e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-22 04:26:02.665000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.12578616352201 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1561  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210122T050057_20210122T064228_16980_01_010400_20210123T223828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.1707097933513 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1562  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210123T011859_20210123T030030_16992_01_010400_20210124T181146.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.21563342318059 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1563  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210123T030030_20210123T044200_16993_01_010400_20210124T193933.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.201  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.231e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-23 04:07:23.283000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.26055705300989 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1564  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210123T044200_20210123T062330_16994_01_010400_20210124T220749.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.30548068283917 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1565  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210124T010002_20210124T024132_17006_01_010400_20210125T175449.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.35040431266847 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1566  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210124T024132_20210124T042302_17007_01_010400_20210125T193422.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.957  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.482e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-24 03:48:50.299000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.732e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.482e-01 DU\n",
      "VCD_trop:  2.573e-01 DU\n",
      "SCD:  6.393e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.39532794249776 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1567  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210124T042302_20210124T060432_17008_01_010400_20210125T213839.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.998  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.397e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-24 05:29:05.565000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.087e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.397e-01 DU\n",
      "VCD_trop:  4.445e-01 DU\n",
      "SCD:  7.542e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.44025157232704 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1568  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210125T004104_20210125T022234_17020_01_010400_20210126T173654.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.48517520215634 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1569  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210125T022234_20210125T040404_17021_01_010400_20210126T191645.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "70.53009883198563 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1570  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210125T040404_20210125T054535_17022_01_010400_20210126T223724.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   20.653  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.460e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-25 05:10:03.623000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.501e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.460e-01 DU\n",
      "VCD_trop:  8.618e-01 DU\n",
      "SCD:  1.034e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.57502246181492 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1571  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210126T020337_20210126T034507_17035_01_010400_20210127T190512.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.61994609164421 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1572  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210126T034507_20210126T052637_17036_01_010400_20210127T212735.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.822  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.581e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-26 04:51:06.181000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.6648697214735 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1573  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210126T052637_20210126T070807_17037_01_010400_20210127T231406.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.70979335130278 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1574  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210127T014440_20210127T032610_17049_01_010400_20210128T185825.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.75471698113208 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1575  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210127T032610_20210127T050740_17050_01_010400_20210128T220946.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.601  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.301e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-27 04:32:17.197000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.370e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.301e-01 DU\n",
      "VCD_trop:  2.309e-01 DU\n",
      "SCD:  5.972e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.79964061096136 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1576  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210127T050740_20210127T064910_17051_01_010400_20210128T233550.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.84456424079065 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1577  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210128T012542_20210128T030712_17063_01_010400_20210129T183520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.88948787061994 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1578  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210128T030712_20210128T044843_17064_01_010400_20210129T204640.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   20.732  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.363e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-28 04:13:35.413000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "70.93441150044923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1579  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210128T044843_20210128T063013_17065_01_010400_20210129T221312.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "70.97933513027853 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1580  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210129T010645_20210129T024815_17077_01_010400_20210130T181344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.02425876010781 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1581  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210129T024815_20210129T042945_17078_01_010400_20210130T201117.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   20.276  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.522e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-29 03:55:00.826000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.835e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.522e-01 DU\n",
      "VCD_trop:  3.641e-01 DU\n",
      "SCD:  7.819e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.0691823899371 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1582  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210129T042945_20210129T061116_17079_01_010400_20210130T215500.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.887  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.582e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-29 05:35:27.011000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.706e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.582e-01 DU\n",
      "VCD_trop:  3.591e-01 DU\n",
      "SCD:  8.226e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.1141060197664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1583  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210130T004748_20210130T022918_17091_01_010400_20210131T173655.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.15902964959568 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1584  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210130T022918_20210130T041048_17092_01_010400_20210131T194554.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.164  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.187e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-30 03:36:30.438000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.20395327942498 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1585  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210130T041048_20210130T055219_17093_01_010400_20210131T213140.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.987  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.375e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-30 05:16:23.144000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.044e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.375e+00 DU\n",
      "VCD_trop:  1.295e+00 DU\n",
      "SCD:  1.611e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.24887690925426 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1586  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210131T021021_20210131T035151_17106_01_010400_20210201T192541.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.29380053908356 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1587  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210131T035151_20210131T053322_17107_01_010400_20210201T212018.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.500  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.635e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-01-31 04:57:24.677000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.33872416891285 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1588  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210131T053322_20210131T071452_17108_01_010400_20210201T230840.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.38364779874213 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1589  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210201T015124_20210201T033255_17120_01_010400_20210203T150545.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.42857142857143 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1590  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210201T033255_20210201T051425_17121_01_010400_20210203T144632.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.335  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.796e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-01 04:38:32.689000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.465e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.796e-01 DU\n",
      "VCD_trop:  7.056e-01 DU\n",
      "SCD:  8.162e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.47349505840072 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1591  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210201T051425_20210201T065555_17122_01_010400_20210203T145947.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.51841868823001 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1592  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210202T013228_20210202T031358_17134_01_010400_20210203T192149.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.5633423180593 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1593  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210202T031358_20210202T045528_17135_01_010400_20210203T205039.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.554  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.265e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-02 04:19:48.260000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.132e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.265e-01 DU\n",
      "VCD_trop:  2.302e-01 DU\n",
      "SCD:  6.041e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.6082659478886 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1594  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210202T045528_20210202T063658_17136_01_010400_20210203T223018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.65318957771788 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1595  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210203T011331_20210203T025501_17148_01_010400_20210204T184116.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.69811320754717 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1596  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210203T025501_20210203T043631_17149_01_010400_20210204T195751.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.018  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.870e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-03 04:01:11.629000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.786e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.870e-01 DU\n",
      "VCD_trop:  8.023e-01 DU\n",
      "SCD:  1.383e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.74303683737647 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1597  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210203T043631_20210203T061801_17150_01_010400_20210204T220917.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.78796046720575 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1598  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210204T005434_20210204T023604_17162_01_010400_20210205T182202.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.83288409703505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1599  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210204T023604_20210204T041735_17163_01_010400_20210205T200244.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.302  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.013e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-04 03:42:39.679000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.347e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.013e-01 DU\n",
      "VCD_trop:  8.236e-01 DU\n",
      "SCD:  1.174e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.87780772686433 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1600  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210204T041735_20210204T055905_17164_01_010400_20210205T214102.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.489  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.304e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-04 05:22:43.545000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.862e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.304e-01 DU\n",
      "VCD_trop:  7.446e-01 DU\n",
      "SCD:  1.086e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "71.92273135669363 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1601  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210205T021708_20210205T035838_17177_01_010400_20210206T194008.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "71.96765498652292 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1602  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210205T035838_20210205T054008_17178_01_010400_20210206T211600.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.000  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.761e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-05 05:03:43.393000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.0125786163522 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1603  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210205T054008_20210205T072139_17179_01_010400_20210206T231651.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.0575022461815 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1604  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210206T015811_20210206T033942_17191_01_010400_20210207T192508.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.10242587601078 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1605  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210206T033942_20210206T052112_17192_01_010400_20210207T205810.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.563  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.606e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-06 04:44:48.722000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.14734950584007 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1606  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210206T052112_20210206T070242_17193_01_010400_20210207T232309.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.19227313566935 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1607  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210207T013915_20210207T032045_17205_01_010400_20210208T183446.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.23719676549865 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1608  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210207T032045_20210207T050215_17206_01_010400_20210208T202627.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.611  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.931e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-07 04:26:01.528000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.899e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.931e-01 DU\n",
      "VCD_trop:  3.047e-01 DU\n",
      "SCD:  6.241e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.28212039532794 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1609  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210207T050215_20210207T064346_17207_01_010400_20210208T224159.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.32704402515722 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1610  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210208T012019_20210208T030149_17219_01_010400_20210209T182034.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.37196765498652 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1611  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210208T030149_20210208T044319_17220_01_010400_20210209T200354.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.416  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.112e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-08 04:07:22.284000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.034e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.112e-01 DU\n",
      "VCD_trop:  2.299e-01 DU\n",
      "SCD:  6.099e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.4168912848158 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1612  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210208T044319_20210208T062449_17221_01_010400_20210209T215700.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.4618149146451 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1613  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210209T010122_20210209T024253_17233_01_010400_20210210T174852.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.50673854447439 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1614  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210209T024253_20210209T042423_17234_01_010400_20210210T195505.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.037  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [90.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.205e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-09 03:48:49.848000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.001e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.205e+00 DU\n",
      "VCD_trop:  1.116e+00 DU\n",
      "SCD:  1.959e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.55166217430369 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1615  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210209T042423_20210209T060553_17235_01_010400_20210210T213837.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.214  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.483e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-09 05:29:04.272000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.556e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.483e-01 DU\n",
      "VCD_trop:  5.503e-01 DU\n",
      "SCD:  1.078e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.59658580413297 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1616  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210210T004226_20210210T022356_17247_01_010400_20210211T173906.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.64150943396226 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1617  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210210T022356_20210210T040527_17248_01_010400_20210211T194432.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "72.68643306379155 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1618  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210210T040527_20210210T054657_17249_01_010400_20210211T211752.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.138  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.068e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-10 05:10:02.078000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.73135669362084 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1619  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210211T020500_20210211T034631_17262_01_010400_20210212T191331.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.77628032345014 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1620  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210211T034631_20210211T052801_17263_01_010400_20210212T205502.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.942  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.963e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-11 04:51:05.764000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.476e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.963e-01 DU\n",
      "VCD_trop:  6.103e-01 DU\n",
      "SCD:  6.990e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.82120395327942 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1621  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210211T052801_20210211T070931_17264_01_010400_20210212T233313.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.86612758310872 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1622  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210212T014604_20210212T032735_17276_01_010400_20210213T183722.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "72.911051212938 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1623  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210212T032735_20210212T050905_17277_01_010400_20210213T202856.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.046  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.330e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-12 04:32:16.529000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.004e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.330e-01 DU\n",
      "VCD_trop:  7.339e-01 DU\n",
      "SCD:  1.164e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "72.95597484276729 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1624  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210212T050905_20210212T065035_17278_01_010400_20210213T230644.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.00089847259659 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1625  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210213T012708_20210213T030839_17290_01_010400_20210214T184140.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.04582210242587 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1626  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210213T030839_20210213T045009_17291_01_010400_20210214T201940.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.740  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.262e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-13 04:13:34.973000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.113e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.262e+00 DU\n",
      "VCD_trop:  1.165e+00 DU\n",
      "SCD:  1.576e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.09074573225517 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1627  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210213T045009_20210213T063139_17292_01_010400_20210214T224053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.13566936208446 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1628  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210214T010812_20210214T024943_17304_01_010400_20210215T182537.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.18059299191376 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1629  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210214T024943_20210214T043113_17305_01_010400_20210215T195202.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.054  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.107e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-14 03:54:59.779000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.22551662174304 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1630  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210214T043113_20210214T061243_17306_01_010400_20210215T214448.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.274  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.065e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-14 05:35:25.724000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.27044025157232 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1631  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210215T004917_20210215T023047_17318_01_010400_20210216T181837.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.31536388140162 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1632  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210215T023047_20210215T041217_17319_01_010400_20210216T192716.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.928  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.950e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-15 03:36:28.902000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.100e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.950e-01 DU\n",
      "VCD_trop:  1.927e-01 DU\n",
      "SCD:  5.885e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.36028751123091 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1633  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210215T041217_20210215T055347_17320_01_010400_20210216T214217.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.229  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.791e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-15 05:16:22.327000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.931e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.791e-01 DU\n",
      "VCD_trop:  1.652e-01 DU\n",
      "SCD:  5.868e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.4052111410602 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1634  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210216T021151_20210216T035321_17333_01_010400_20210217T190448.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.45013477088949 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1635  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210216T035321_20210216T053452_17334_01_010400_20210217T211524.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.050  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.034e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-16 04:57:23.610000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.49505840071878 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1636  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210216T053452_20210216T071622_17335_01_010400_20210217T232243.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.53998203054807 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1637  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210217T015255_20210217T033426_17347_01_010400_20210218T184534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.58490566037736 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1638  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210217T033426_20210217T051556_17348_01_010400_20210218T210932.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.307  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.813e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-17 04:38:31.252000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.803e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.813e-01 DU\n",
      "VCD_trop:  1.569e-01 DU\n",
      "SCD:  5.575e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.62982929020664 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1639  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210217T051556_20210217T065726_17349_01_010400_20210218T225349.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.67475292003593 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1640  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210218T013400_20210218T031530_17361_01_010400_20210219T183442.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.71967654986523 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1641  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210218T031530_20210218T045700_17362_01_010400_20210219T201703.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.033  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.832e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-18 04:19:47.411000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.655e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.832e-01 DU\n",
      "VCD_trop:  2.843e-01 DU\n",
      "SCD:  6.829e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.76460017969451 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1642  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210218T045700_20210218T063830_17363_01_010400_20210219T221721.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.80952380952381 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1643  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210219T011504_20210219T025634_17375_01_010400_20210220T180538.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.8544474393531 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1644  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210219T025634_20210219T043804_17376_01_010400_20210220T195904.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.173  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.124e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-19 04:01:10.168000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.977e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.124e-01 DU\n",
      "VCD_trop:  6.087e-01 DU\n",
      "SCD:  9.407e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "73.89937106918238 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1645  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210219T043804_20210219T061935_17377_01_010400_20210220T221849.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.94429469901168 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1646  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210220T005608_20210220T023739_17389_01_010400_20210221T175815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "73.98921832884096 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1647  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210220T023739_20210220T041909_17390_01_010400_20210221T195456.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.254  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.418e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-20 03:42:38.805000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.791e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.418e+00 DU\n",
      "VCD_trop:  1.319e+00 DU\n",
      "SCD:  1.586e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.03414195867026 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1648  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210220T041909_20210220T060039_17391_01_010400_20210221T220346.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.195  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.677e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-20 05:22:42.309000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.379e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.677e-01 DU\n",
      "VCD_trop:  7.593e-01 DU\n",
      "SCD:  1.066e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.07906558849955 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1649  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210221T021843_20210221T040013_17404_01_010400_20210222T192226.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.12398921832884 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1650  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210221T040013_20210221T054144_17405_01_010400_20210222T214022.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.697  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.185e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-21 05:03:41.517000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.306e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.185e-01 DU\n",
      "VCD_trop:  2.159e-01 DU\n",
      "SCD:  5.377e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.16891284815813 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1651  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210221T054144_20210221T072314_17406_01_010400_20210222T234320.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.21383647798741 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1652  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210222T001817_20210222T015948_17417_01_010400_20210223T172733.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.25876010781671 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1653  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210222T015948_20210222T034118_17418_01_010400_20210223T190049.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.303683737646 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1654  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210222T034118_20210222T052248_17419_01_010400_20210223T205257.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.201  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.197e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-22 04:44:47.475000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.149e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.197e-01 DU\n",
      "VCD_trop:  3.149e-01 DU\n",
      "SCD:  5.946e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.3486073674753 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1655  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210222T052248_20210222T070419_17420_01_010400_20210223T230254.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.39353099730458 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1656  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210223T014052_20210223T032223_17432_01_010400_20210224T185457.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.43845462713388 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1657  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210223T032223_20210223T050353_17433_01_010400_20210224T203153.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.703  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.792e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-23 04:26:00.632000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.711e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.792e-01 DU\n",
      "VCD_trop:  2.669e-01 DU\n",
      "SCD:  6.442e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.48337825696316 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1658  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210223T050353_20210223T064523_17434_01_010400_20210224T225144.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.52830188679245 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1659  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210224T012157_20210224T030327_17446_01_010400_20210225T182448.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.57322551662175 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1660  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210224T030327_20210224T044457_17447_01_010400_20210225T201548.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.210  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.565e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-24 04:07:20.747000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.868e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.565e-01 DU\n",
      "VCD_trop:  8.487e-01 DU\n",
      "SCD:  1.446e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.61814914645103 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1661  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210224T044457_20210224T062628_17448_01_010400_20210225T222313.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.66307277628033 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1662  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210225T010301_20210225T024432_17460_01_010400_20210226T182340.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.70799640610961 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1663  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210225T024432_20210225T042602_17461_01_010400_20210226T194440.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.256  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.394e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-25 03:48:48.223000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.75292003593891 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1664  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210225T042602_20210225T060732_17462_01_010400_20210226T220237.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.659  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.947e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-25 05:29:02.647000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.7978436657682 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1665  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210226T004406_20210226T022536_17474_01_010400_20210227T181616.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.84276729559748 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1666  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210226T022536_20210226T040707_17475_01_010400_20210227T194355.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "74.88769092542678 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1667  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210226T040707_20210226T054837_17476_01_010400_20210227T213358.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.982  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.246e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-26 05:10:01.044000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.046e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.246e-01 DU\n",
      "VCD_trop:  3.058e-01 DU\n",
      "SCD:  7.364e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "74.93261455525607 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1668  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210226T054837_20210226T073007_17477_01_010400_20210227T233640.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "74.97753818508535 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1669  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210227T002511_20210227T020641_17488_01_010400_20210228T172902.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.02246181491465 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1670  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210227T020641_20210227T034812_17489_01_010400_20210228T185151.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.06738544474393 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1671  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210227T034812_20210227T052942_17490_01_010400_20210228T205504.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.100  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.713e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-27 04:51:04.120000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.610e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.713e-01 DU\n",
      "VCD_trop:  2.541e-01 DU\n",
      "SCD:  6.018e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.11230907457322 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1672  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210227T052942_20210227T071112_17491_01_010400_20210228T225917.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.15723270440252 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1673  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210228T000616_20210228T014746_17502_01_010400_20210301T171748.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.2021563342318 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1674  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210228T014746_20210228T032916_17503_01_010400_20210301T184709.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.24707996406109 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1675  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210228T032916_20210228T051047_17504_01_010400_20210301T204823.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.690  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.738e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-02-28 04:32:14.197000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.29200359389039 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1676  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210228T051047_20210228T065217_17505_01_010400_20210301T223721.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.33692722371967 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1677  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210309T022031_20210309T040201_17631_01_010400_20210310T192721.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.38185085354897 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1678  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210228T234721_20210301T012851_17516_01_010400_20210302T164303.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.42677448337825 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1679  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210301T012851_20210301T031021_17517_01_010400_20210302T185011.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.47169811320755 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1680  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210301T031021_20210301T045151_17518_01_010400_20210302T200712.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.765  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.004e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-01 04:13:32.752000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.51662174303684 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1681  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210301T045151_20210301T063322_17519_01_010400_20210302T223314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.56154537286612 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1682  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210301T232825_20210302T010956_17530_01_010400_20210303T163111.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.60646900269542 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1683  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210302T010956_20210302T025126_17531_01_010400_20210303T183332.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.6513926325247 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1684  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210302T025126_20210302T043256_17532_01_010400_20210303T195843.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.103  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.366e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-02 03:54:57.905000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.696316262354 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1685  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210302T043256_20210302T061427_17533_01_010400_20210303T220905.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.778  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.785e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-02 05:35:23.728000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.74123989218329 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1686  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210302T061427_20210302T075557_17534_01_010400_20210303T233146.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.78616352201259 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1687  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210303T005101_20210303T023231_17545_01_010400_20210304T181325.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.83108715184187 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1688  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210303T023231_20210303T041401_17546_01_010400_20210304T194959.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   23.325  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.361e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-03 03:36:27.376000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.019e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.361e+00 DU\n",
      "VCD_trop:  1.259e+00 DU\n",
      "SCD:  1.261e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.87601078167116 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1689  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210303T041401_20210303T055531_17547_01_010400_20210304T215513.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.295  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.160e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-03 05:16:20.521000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "75.92093441150045 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1690  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210303T055531_20210303T073702_17548_01_010400_20210304T230306.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "75.96585804132974 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1691  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210304T003205_20210304T021336_17559_01_010400_20210307T090016.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.01078167115904 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1692  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210304T021336_20210304T035506_17560_01_010400_20210307T100718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.05570530098832 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1693  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210304T035506_20210304T053636_17561_01_010400_20210307T103405.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "76.10062893081762 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1694  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210304T053636_20210304T071807_17562_01_010400_20210307T105227.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.1455525606469 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1695  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210305T001310_20210305T015441_17573_01_010400_20210306T172015.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.19047619047619 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1696  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210305T015441_20210305T033611_17574_01_010400_20210306T184143.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.23539982030549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1697  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210305T033611_20210305T051741_17575_01_010400_20210306T210254.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.240  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.228e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-05 04:38:29.003000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.641e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.228e-01 DU\n",
      "VCD_trop:  6.097e-01 DU\n",
      "SCD:  9.620e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.28032345013477 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1698  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210305T051741_20210305T065912_17576_01_010400_20210306T223505.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.32524707996407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1699  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210305T235415_20210306T013546_17587_01_010400_20210307T164528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.37017070979336 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1700  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210306T013546_20210306T031716_17588_01_010400_20210307T182047.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.41509433962264 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1701  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210306T031716_20210306T045846_17589_01_010400_20210307T205933.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.292  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.953e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-06 04:19:44.794000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.46001796945193 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1702  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210306T045846_20210306T064017_17590_01_010400_20210307T221512.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.50494159928122 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1703  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210306T233520_20210307T011651_17601_01_010400_20210308T164229.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.54986522911051 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1704  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210307T011651_20210307T025821_17602_01_010400_20210308T180924.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.5947888589398 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1705  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210307T025821_20210307T043951_17603_01_010400_20210308T200736.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.116  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.392e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-07 04:01:08.144000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.780e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.392e-01 DU\n",
      "VCD_trop:  5.279e-01 DU\n",
      "SCD:  8.531e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.63971248876909 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1706  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210307T043951_20210307T062122_17604_01_010400_20210308T215859.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.68463611859838 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1707  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210308T005756_20210308T023926_17616_01_010400_20210309T180958.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.72955974842768 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1708  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210308T023926_20210308T042056_17617_01_010400_20210309T194607.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.712  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.664e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-08 03:42:35.814000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.342e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.664e+00 DU\n",
      "VCD_trop:  1.548e+00 DU\n",
      "SCD:  2.249e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.77448337825696 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1709  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210308T042056_20210308T060227_17618_01_010400_20210309T214337.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.992  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.020e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-08 05:22:40.158000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.934e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.020e+00 DU\n",
      "VCD_trop:  2.896e+00 DU\n",
      "SCD:  2.679e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.81940700808624 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1710  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210308T060227_20210308T074357_17619_01_010400_20210309T232707.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.86433063791554 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1711  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210309T003901_20210309T022031_17630_01_010400_20210310T175634.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.90925426774483 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1712  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210309T040201_20210309T054332_17632_01_010400_20210310T213624.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.358  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.450e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-09 05:03:39.387000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.016e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.450e+00 DU\n",
      "VCD_trop:  1.332e+00 DU\n",
      "SCD:  1.125e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "76.95417789757413 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1713  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210309T054332_20210309T072502_17633_01_010400_20210310T225924.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "76.99910152740341 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1714  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210310T002006_20210310T020136_17644_01_010400_20210311T184115.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.04402515723271 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1715  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210310T020136_20210310T034306_17645_01_010400_20210311T184815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1716  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210310T034306_20210310T052437_17646_01_010400_20210311T210006.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.099  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.382e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-10 04:44:44.375000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.614e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.382e-01 DU\n",
      "VCD_trop:  7.216e-01 DU\n",
      "SCD:  1.092e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.13387241689128 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1717  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210310T052437_20210310T070607_17647_01_010400_20210311T223301.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.17879604672058 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1718  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210311T000111_20210311T014241_17658_01_010400_20210312T170729.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.22371967654986 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1719  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210311T014241_20210311T032411_17659_01_010400_20210312T184822.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.26864330637916 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1720  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210311T032411_20210311T050542_17660_01_010400_20210312T202034.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.911  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.745e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-11 04:25:57.760000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.559e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.745e+00 DU\n",
      "VCD_trop:  1.640e+00 DU\n",
      "SCD:  2.068e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.31356693620845 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1721  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210311T050542_20210311T064712_17661_01_010400_20210312T221817.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.35849056603774 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1722  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210311T234216_20210312T012346_17672_01_010400_20210313T170323.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.40341419586703 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1723  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210312T012346_20210312T030516_17673_01_010400_20210313T182301.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.44833782569631 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1724  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210312T030516_20210312T044647_17674_01_010400_20210313T200046.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.949  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.433e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-12 04:07:18.705000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.49326145552561 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1725  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210312T044647_20210312T062817_17675_01_010400_20210313T215608.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.5381850853549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1726  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210313T010451_20210313T024621_17687_01_010400_20210314T180828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.5831087151842 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1727  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210313T024621_20210313T042752_17688_01_010400_20210314T192804.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.387  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.703e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-13 03:48:45.648000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.62803234501348 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1728  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210313T042752_20210313T060922_17689_01_010400_20210314T214514.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.130  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.917e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-13 05:29:00.071000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.214e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.917e-01 DU\n",
      "VCD_trop:  4.712e-01 DU\n",
      "SCD:  7.744e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.67295597484278 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1729  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210313T060922_20210313T075053_17690_01_010400_20210314T234558.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.71787960467206 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1730  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210314T004556_20210314T022727_17701_01_010400_20210315T174403.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.76280323450135 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1731  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210314T022727_20210314T040857_17702_01_010400_20210315T185023.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "77.80772686433065 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1732  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210314T040857_20210314T055027_17703_01_010400_20210315T214043.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.065  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.184e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-14 05:09:58.213000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "77.85265049415993 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1733  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210314T055027_20210314T073158_17704_01_010400_20210315T232612.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.89757412398922 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1734  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210315T002701_20210315T020832_17715_01_010400_20210316T171912.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.9424977538185 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1735  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210315T020832_20210315T035002_17716_01_010400_20210316T183008.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "77.9874213836478 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1736  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210315T035002_20210315T053132_17717_01_010400_20210316T212106.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.856  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.062e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-15 04:51:01.037000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.03234501347708 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1737  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210315T053132_20210315T071303_17718_01_010400_20210316T225132.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.07726864330637 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1738  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210316T000806_20210316T014937_17729_01_010400_20210317T171404.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.12219227313567 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1739  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210316T014937_20210316T033107_17730_01_010400_20210317T181953.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.16711590296495 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1740  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210316T033107_20210316T051237_17731_01_010400_20210317T210836.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.946  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.077e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-16 04:32:11.582000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.803e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.077e-01 DU\n",
      "VCD_trop:  3.004e-01 DU\n",
      "SCD:  5.800e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.21203953279425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1741  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210316T051237_20210316T065408_17732_01_010400_20210317T223534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.25696316262353 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1742  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210316T234912_20210317T013042_17743_01_010400_20210318T164343.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.30188679245283 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1743  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210317T013042_20210317T031212_17744_01_010400_20210318T183436.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.34681042228212 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1744  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210317T031212_20210317T045343_17745_01_010400_20210318T203920.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.160  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.348e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-17 04:13:30.005000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.777e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.348e-01 DU\n",
      "VCD_trop:  7.374e-01 DU\n",
      "SCD:  1.102e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.3917340521114 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1745  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210317T045343_20210317T063513_17746_01_010400_20210318T222936.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.4366576819407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1746  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210317T233017_20210318T011147_17757_01_010400_20210319T164340.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.48158131176999 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1747  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210318T011147_20210318T025317_17758_01_010400_20210319T181942.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.52650494159928 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1748  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210318T025317_20210318T043448_17759_01_010400_20210319T201218.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.556  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.579e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-18 03:54:55.358000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.57142857142857 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1749  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210318T043448_20210318T061618_17760_01_010400_20210319T221246.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.209  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.578e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-18 05:35:21.181000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.181e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.578e+00 DU\n",
      "VCD_trop:  1.475e+00 DU\n",
      "SCD:  1.455e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.61635220125787 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1750  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210318T061618_20210318T075748_17761_01_010400_20210319T234231.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.66127583108715 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1751  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210319T005252_20210319T023422_17772_01_010400_20210320T181715.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.70619946091644 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1752  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210319T023422_20210319T041553_17773_01_010400_20210320T193624.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.771  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.937e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-19 03:36:24.101000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.637e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.937e-01 DU\n",
      "VCD_trop:  4.010e-01 DU\n",
      "SCD:  6.485e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.75112309074574 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1753  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210319T041553_20210319T055723_17774_01_010400_20210320T213216.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.275  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.636e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-19 05:16:17.405000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.104e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.636e-01 DU\n",
      "VCD_trop:  7.624e-01 DU\n",
      "SCD:  1.058e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.79604672057502 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1754  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210319T055723_20210319T073854_17775_01_010400_20210320T230757.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.84097035040432 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1755  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210320T003357_20210320T021528_17786_01_010400_20210321T175003.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.8858939802336 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1756  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210320T021528_20210320T035658_17787_01_010400_20210321T192613.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "78.9308176100629 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1757  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210320T035658_20210320T053828_17788_01_010400_20210321T211039.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.217  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.029e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-20 04:57:18.188000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "78.97574123989219 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1758  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210320T053828_20210320T071959_17789_01_010400_20210321T225854.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.02066486972147 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1759  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210321T001502_20210321T015633_17800_01_010400_20210322T171128.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.06558849955077 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1760  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210321T015633_20210321T033803_17801_01_010400_20210322T185617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.11051212938006 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1761  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210321T033803_20210321T051933_17802_01_010400_20210322T205858.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   21.352  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.201e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-21 04:38:25.809000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.15543575920935 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1762  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210321T051933_20210321T070104_17803_01_010400_20210322T223531.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.20035938903864 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1763  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210321T235607_20210322T013738_17814_01_010400_20210323T165633.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.24528301886792 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1764  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210322T013738_20210322T031908_17815_01_010400_20210323T184645.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.29020664869722 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1765  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210322T031908_20210322T050038_17816_01_010400_20210323T203521.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   22.139  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.478e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-22 04:19:41.587000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.177e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.478e-01 DU\n",
      "VCD_trop:  3.025e-01 DU\n",
      "SCD:  7.270e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.3351302785265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1766  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210322T050038_20210322T064209_17817_01_010400_20210323T222324.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.38005390835579 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1767  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210322T233712_20210323T011843_17828_01_010400_20210324T164337.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.42497753818508 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1768  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210323T011843_20210323T030013_17829_01_010400_20210324T180939.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.46990116801437 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1769  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210323T030013_20210323T044143_17830_01_010400_20210324T200216.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.101  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.379e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-23 04:01:05.166000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.619e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.379e-01 DU\n",
      "VCD_trop:  7.157e-01 DU\n",
      "SCD:  1.126e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.51482479784366 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1770  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210323T044143_20210323T062314_17831_01_010400_20210324T221945.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.55974842767296 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1771  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210324T005948_20210324T024118_17843_01_010400_20210325T180309.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.60467205750224 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1772  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210324T024118_20210324T042248_17844_01_010400_20210325T195518.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.785  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.044e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-24 03:42:32.705000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  7.726e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.044e+00 DU\n",
      "VCD_trop:  9.213e-01 DU\n",
      "SCD:  1.367e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.64959568733153 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1773  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210324T042248_20210324T060419_17845_01_010400_20210325T214621.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.537  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.009e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-24 05:22:37.288000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.637e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.009e-01 DU\n",
      "VCD_trop:  5.670e-01 DU\n",
      "SCD:  1.038e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.69451931716083 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1774  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210324T060419_20210324T074549_17846_01_010400_20210325T232713.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.73944294699011 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1775  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210325T004053_20210325T022223_17857_01_010400_20210326T175036.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.78436657681941 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1776  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210325T022223_20210325T040354_17858_01_010400_20210326T191453.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.8292902066487 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1777  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210325T040354_20210325T054524_17859_01_010400_20210326T212326.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.407  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.092e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-25 05:03:36.388000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.430e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.092e-01 DU\n",
      "VCD_trop:  5.681e-01 DU\n",
      "SCD:  9.425e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "79.87421383647799 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1778  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210325T054524_20210325T072654_17860_01_010400_20210326T231441.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.91913746630728 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1779  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210326T002158_20210326T020328_17871_01_010400_20210327T172156.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "79.96406109613656 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1780  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210326T020328_20210326T034459_17872_01_010400_20210327T183924.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.00898472596586 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1781  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210326T034459_20210326T052629_17873_01_010400_20210327T203931.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.935  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.369e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-26 04:44:41.609000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.631e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.369e+00 DU\n",
      "VCD_trop:  1.251e+00 DU\n",
      "SCD:  9.574e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.05390835579514 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1782  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210326T052629_20210326T070759_17874_01_010400_20210327T224851.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.09883198562444 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1783  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210327T000303_20210327T014433_17885_01_010400_20210328T172138.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.14375561545373 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1784  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210327T014433_20210327T032604_17886_01_010400_20210328T184055.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.18867924528303 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1785  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210327T032604_20210327T050734_17887_01_010400_20210328T203815.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.471  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.030e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-27 04:25:54.749000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.23360287511231 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1786  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210327T050734_20210327T064904_17888_01_010400_20210328T221929.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.2785265049416 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1787  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210327T234408_20210328T012538_17899_01_010400_20210329T165857.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.3234501347709 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1788  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210328T012538_20210328T030709_17900_01_010400_20210329T182253.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.36837376460018 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1789  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210328T030709_20210328T044839_17901_01_010400_20210329T200538.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.595  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.141e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-28 04:07:15.089000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.41329739442948 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1790  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210328T044839_20210328T063009_17902_01_010400_20210329T221247.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.45822102425876 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1791  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210329T010643_20210329T024814_17914_01_010400_20210330T181818.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.50314465408806 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1792  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210329T024814_20210329T042944_17915_01_010400_20210330T195544.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.022  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.548e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-29 03:48:41.786000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.54806828391735 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1793  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210329T042944_20210329T061114_17916_01_010400_20210330T214237.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.923  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.694e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-29 05:28:57.049000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.59299191374663 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1794  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210329T061114_20210329T075245_17917_01_010400_20210330T230131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.63791554357593 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1795  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210330T004748_20210330T022919_17928_01_010400_20210331T180040.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.68283917340521 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1796  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210330T022919_20210330T041049_17929_01_010400_20210331T193545.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "80.7277628032345 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1797  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210330T041049_20210330T055219_17930_01_010400_20210331T210831.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.836  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.667e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-30 05:09:54.227000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.414e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.667e-01 DU\n",
      "VCD_trop:  3.400e-01 DU\n",
      "SCD:  6.842e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.7726864330638 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1798  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210330T055219_20210330T073350_17931_01_010400_20210331T225604.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.81761006289308 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1799  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210331T002853_20210331T021024_17942_01_010400_20210401T172207.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.86253369272237 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1800  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210331T021024_20210331T035154_17943_01_010400_20210401T185220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.90745732255165 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1801  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210331T035154_20210331T053324_17944_01_010400_20210401T210252.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.116  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.150e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-03-31 04:50:57.224000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.701e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.150e+00 DU\n",
      "VCD_trop:  2.030e+00 DU\n",
      "SCD:  1.992e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "80.95238095238095 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1802  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210331T053324_20210331T071455_17945_01_010400_20210401T224314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "80.99730458221023 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1803  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210401T000958_20210401T015128_17956_01_010400_20210402T165306.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.04222821203953 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1804  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210401T015128_20210401T033259_17957_01_010400_20210402T182115.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.08715184186882 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1805  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210401T033259_20210401T051429_17958_01_010400_20210402T204516.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.153  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.652e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-01 04:32:07.601000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.423e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.652e-01 DU\n",
      "VCD_trop:  2.526e-01 DU\n",
      "SCD:  4.360e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.13207547169812 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1806  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210401T051429_20210401T065559_17959_01_010400_20210402T221406.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.1769991015274 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1807  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210401T235103_20210402T013233_17970_01_010400_20210403T163100.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.22192273135668 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1808  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210402T013233_20210402T031404_17971_01_010400_20210403T180423.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.26684636118598 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1809  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210402T031404_20210402T045534_17972_01_010400_20210403T201735.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.061  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.540e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-02 04:13:26.257000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.31176999101527 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1810  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210402T045534_20210402T063704_17973_01_010400_20210403T220041.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.35669362084457 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1811  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210402T233208_20210403T011338_17984_01_010400_20210404T162623.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.40161725067385 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1812  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210403T011338_20210403T025508_17985_01_010400_20210404T175122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.44654088050315 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1813  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210403T025508_20210403T043639_17986_01_010400_20210404T195642.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   24.537  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.950e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-03 03:54:51.392000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.49146451033243 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1814  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210403T043639_20210403T061809_17987_01_010400_20210404T215208.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.533  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.590e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-03 05:35:16.735000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.53638814016172 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1815  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210403T061809_20210403T075939_17988_01_010400_20210404T233828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.58131176999102 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1816  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210404T005443_20210404T023613_17999_01_010400_20210405T173339.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.6262353998203 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1817  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210404T023613_20210404T041743_18000_01_010400_20210405T192256.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.474  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.477e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-04 03:36:20.487000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.614e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.477e-01 DU\n",
      "VCD_trop:  1.482e-01 DU\n",
      "SCD:  5.095e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.6711590296496 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1818  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210404T041743_20210404T055914_18001_01_010400_20210405T220542.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.262  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.409e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-04 05:16:13.310000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.71608265947889 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1819  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210404T055914_20210404T074044_18002_01_010400_20210405T232107.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.76100628930818 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1820  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T003548_20210405T021718_18013_01_010400_20210406T172053.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.80592991913747 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1821  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T021718_20210405T035848_18014_01_010400_20210406T191321.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.85085354896675 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1822  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T035848_20210405T054019_18015_01_010400_20210406T212324.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.323  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.854e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-05 04:57:14.084000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.615e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.854e-01 DU\n",
      "VCD_trop:  3.781e-01 DU\n",
      "SCD:  6.437e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "81.89577717879605 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1823  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T054019_20210405T072149_18016_01_010400_20210406T230519.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.94070080862534 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1824  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T173051_20210405T191221_18023_01_010400_20210407T103515.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "81.98562443845464 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1825  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210405T191221_20210405T205352_18024_01_010400_20210407T122342.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.03054806828392 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1826  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T001652_20210406T015823_18027_01_010400_20210407T173111.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.0754716981132 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1827  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T015823_20210406T033953_18028_01_010400_20210407T184924.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.1203953279425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1828  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T033953_20210406T052123_18029_01_010400_20210407T211354.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   38.797  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.093e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-06 04:38:22.298000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.650e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.093e-01 DU\n",
      "VCD_trop:  4.884e-01 DU\n",
      "SCD:  7.946e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "82.16531895777179 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1829  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T052123_20210406T070254_18030_01_010400_20210407T224251.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.21024258760107 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1830  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T171156_20210406T185326_18037_01_010400_20210408T103907.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.25516621743037 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1831  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T185326_20210406T203456_18038_01_010400_20210408T120747.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.30008984725966 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1832  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210406T235757_20210407T013927_18041_01_010400_20210408T170439.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.34501347708894 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1833  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T013927_20210407T032058_18042_01_010400_20210408T184723.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.38993710691824 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1834  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T032058_20210407T050228_18043_01_010400_20210408T204308.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.469  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.546e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-07 04:19:37.593000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.254e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.546e+00 DU\n",
      "VCD_trop:  1.435e+00 DU\n",
      "SCD:  1.692e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "82.43486073674752 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1835  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T050228_20210407T064358_18044_01_010400_20210408T222645.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.47978436657682 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1836  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T165300_20210407T183431_18051_01_010400_20210409T100644.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.52470799640611 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1837  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T183431_20210407T201601_18052_01_010400_20210409T114209.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.56963162623539 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1838  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210407T233902_20210408T012032_18055_01_010400_20210409T162924.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.61455525606469 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1839  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T012032_20210408T030202_18056_01_010400_20210409T181907.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.65947888589398 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1840  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T030202_20210408T044333_18057_01_010400_20210409T200549.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.604  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.691e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-08 04:01:00.686000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.531e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.691e-01 DU\n",
      "VCD_trop:  3.395e-01 DU\n",
      "SCD:  7.432e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "82.70440251572327 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1841  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T044333_20210408T062503_18058_01_010400_20210409T214926.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.74932614555256 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1842  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T163405_20210408T181535_18065_01_010400_20210410T095017.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.79424977538186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1843  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T181535_20210408T195706_18066_01_010400_20210410T112351.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.83917340521114 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1844  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210408T195706_20210408T213836_18067_01_010400_20210410T131243.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.88409703504043 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1845  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T010137_20210409T024307_18070_01_010400_20210410T175220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "82.92902066486973 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1846  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T024307_20210409T042437_18071_01_010400_20210410T193037.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.526  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.063e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-09 03:42:29.176000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.563e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.063e-01 DU\n",
      "VCD_trop:  5.801e-01 DU\n",
      "SCD:  1.007e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "82.97394429469901 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1847  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T042437_20210409T060608_18072_01_010400_20210410T220704.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.877  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.614e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-09 05:22:32.678000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.940e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.614e-01 DU\n",
      "VCD_trop:  8.297e-01 DU\n",
      "SCD:  1.206e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "83.01886792452831 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1848  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T060608_20210409T074738_18073_01_010400_20210410T233130.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.06379155435759 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1849  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T175640_20210409T193810_18080_01_010400_20210411T112145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.10871518418689 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1850  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210409T193810_20210409T211941_18081_01_010400_20210411T130506.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.15363881401618 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1851  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T004241_20210410T022412_18084_01_010400_20210411T173347.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.19856244384546 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1852  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T022412_20210410T040542_18085_01_010400_20210411T190923.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.24348607367476 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1853  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T040542_20210410T054712_18086_01_010400_20210411T212855.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.932  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.566e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-10 05:03:31.408000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.175e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.566e-01 DU\n",
      "VCD_trop:  4.339e-01 DU\n",
      "SCD:  7.275e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "83.28840970350404 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1854  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T054712_20210410T072842_18087_01_010400_20210411T230151.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.33333333333334 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1855  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T173744_20210410T191915_18094_01_010400_20210412T104514.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.37825696316263 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1856  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210410T191915_20210410T210045_18095_01_010400_20210412T124828.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.42318059299191 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1857  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T002346_20210411T020516_18098_01_010400_20210412T172158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.46810422282121 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1858  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T020516_20210411T034646_18099_01_010400_20210412T182512.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.5130278526505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1859  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T034646_20210411T052817_18100_01_010400_20210412T211056.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.993  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.571e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-11 04:44:36.976000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.161e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.571e-01 DU\n",
      "VCD_trop:  5.387e-01 DU\n",
      "SCD:  7.638e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "83.55795148247978 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1860  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T052817_20210411T070947_18101_01_010400_20210412T224528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.60287511230908 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1861  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T171849_20210411T190019_18108_01_010400_20210413T102123.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.64779874213836 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1862  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210411T190019_20210411T204150_18109_01_010400_20210413T123013.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.69272237196765 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1863  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T000450_20210412T014621_18112_01_010400_20210413T171547.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.73764600179695 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1864  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T014621_20210412T032751_18113_01_010400_20210413T183037.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.78256963162623 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1865  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T032751_20210412T050921_18114_01_010400_20210413T204652.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   25.186  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.298e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-12 04:25:49.835000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "83.82749326145552 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1866  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T050921_20210412T065051_18115_01_010400_20210413T222918.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.87241689128481 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1867  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T165953_20210412T184124_18122_01_010400_20210414T101105.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.9173405211141 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1868  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T184124_20210412T202254_18123_01_010400_20210414T121515.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "83.9622641509434 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1869  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210412T234555_20210413T012725_18126_01_010400_20210414T164312.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.00718778077268 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1870  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210413T012725_20210413T030855_18127_01_010400_20210415T144757.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.05211141060198 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1871  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210413T164058_20210413T182228_18136_01_010400_20210415T094636.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.09703504043127 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1872  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210413T182228_20210413T200358_18137_01_010400_20210415T113718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.14195867026055 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1873  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210413T200358_20210413T214529_18138_01_010400_20210415T131411.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.18688230008985 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1874  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T010829_20210414T025000_18141_01_010400_20210415T174528.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.23180592991913 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1875  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T025000_20210414T043130_18142_01_010400_20210415T194323.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.751  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.813e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-14 03:48:37.093000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  5.086e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.813e-01 DU\n",
      "VCD_trop:  4.299e-01 DU\n",
      "SCD:  9.912e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "84.27672955974843 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1876  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T043130_20210414T061300_18143_01_010400_20210415T215902.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.998  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.818e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-14 05:28:52.476000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.267e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.818e-01 DU\n",
      "VCD_trop:  3.289e-01 DU\n",
      "SCD:  8.974e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "84.32165318957772 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1877  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T061300_20210414T075431_18144_01_010400_20210415T231534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.36657681940702 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1878  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T162202_20210414T180332_18150_01_010400_20210416T094010.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.4115004492363 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1879  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T180332_20210414T194503_18151_01_010400_20210416T113025.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.45642407906558 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1880  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210414T194503_20210414T212633_18152_01_010400_20210416T131525.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.50134770889488 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1881  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T004934_20210415T023104_18155_01_010400_20210416T173403.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.54627133872417 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1882  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T023104_20210415T041234_18156_01_010400_20210416T192319.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "84.59119496855347 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1883  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T041234_20210415T055404_18157_01_010400_20210416T211508.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.192  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.201e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-15 05:09:49.762000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  9.190e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.201e+00 DU\n",
      "VCD_trop:  1.054e+00 DU\n",
      "SCD:  1.388e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "84.63611859838275 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1884  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T055404_20210415T073535_18158_01_010400_20210416T225617.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.68104222821205 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1885  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T160306_20210415T174437_18164_01_010400_20210417T091525.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.72596585804133 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1886  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T174437_20210415T192607_18165_01_010400_20210417T105029.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.77088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1887  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210415T192607_20210415T210737_18166_01_010400_20210417T124043.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.81581311769992 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1888  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T003038_20210416T021208_18169_01_010400_20210417T171132.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.8607367475292 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1889  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T021208_20210416T035338_18170_01_010400_20210417T190148.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.90566037735849 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1890  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T035338_20210416T053509_18171_01_010400_20210417T210451.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   26.802  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.716e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-16 04:50:52.688000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "84.95058400718779 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1891  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T053509_20210416T071639_18172_01_010400_20210417T225223.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "84.99550763701707 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1892  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T172541_20210416T190711_18179_01_010400_20210418T104551.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.04043126684635 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1893  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210416T190711_20210416T204841_18180_01_010400_20210418T122141.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.08535489667565 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1894  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T001142_20210417T015312_18183_01_010400_20210418T165845.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.13027852650494 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1895  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T015312_20210417T033443_18184_01_010400_20210418T185100.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.17520215633422 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1896  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T033443_20210417T051613_18185_01_010400_20210418T204000.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.724  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.514e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-17 04:32:03.454000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.22012578616352 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1897  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T051613_20210417T065743_18186_01_010400_20210418T223115.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.2650494159928 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1898  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T184815_20210417T202946_18194_01_010400_20210419T115840.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.3099730458221 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1899  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210417T235246_20210418T013416_18197_01_010400_20210419T164108.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.35489667565139 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1900  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210418T013416_20210418T031547_18198_01_010400_20210419T181012.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.39982030548067 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1901  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210418T031547_20210418T045717_18199_01_010400_20210419T202022.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.386  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.334e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-18 04:13:21.979000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.288e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.334e-01 DU\n",
      "VCD_trop:  1.937e-01 DU\n",
      "SCD:  5.236e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.44474393530997 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1902  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210418T045717_20210418T063847_18200_01_010400_20210419T222626.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.48966756513926 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1903  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210418T164749_20210418T182919_18207_01_010400_20210420T100827.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.53459119496856 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1904  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210418T233350_20210419T011520_18211_01_010400_20210420T164710.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.57951482479784 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1905  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T011520_20210419T025651_18212_01_010400_20210420T174854.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.62443845462714 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1906  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T025651_20210419T043821_18213_01_010400_20210420T193627.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.773  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.964e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-19 03:54:46.144000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.319e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.964e-01 DU\n",
      "VCD_trop:  3.597e-01 DU\n",
      "SCD:  7.481e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.66936208445642 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1907  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T043821_20210419T061951_18214_01_010400_20210420T215644.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.606  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.203e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-19 05:35:12.326000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.717e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.203e-01 DU\n",
      "VCD_trop:  2.749e-01 DU\n",
      "SCD:  7.616e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.71428571428571 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1908  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T061951_20210419T080122_18215_01_010400_20210420T232713.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.759209344115 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1909  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T162853_20210419T181023_18221_01_010400_20210421T094507.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.80413297394429 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1910  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210419T181023_20210419T195154_18222_01_010400_20210421T114433.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.84905660377359 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1911  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T005624_20210420T023755_18226_01_010400_20210421T173548.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "85.89398023360287 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1912  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T023755_20210420T041925_18227_01_010400_20210421T192153.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.693  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.296e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-20 03:36:15.987000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.708e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.296e+00 DU\n",
      "VCD_trop:  1.187e+00 DU\n",
      "SCD:  1.358e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.93890386343217 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1913  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T041925_20210420T060055_18228_01_010400_20210421T213735.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.523  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "8.548e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-20 05:16:08.330000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.235e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  8.548e-01 DU\n",
      "VCD_trop:  7.373e-01 DU\n",
      "SCD:  9.289e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "85.98382749326146 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1914  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T060055_20210420T074226_18229_01_010400_20210421T231613.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.02875112309074 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1915  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T160957_20210420T175127_18235_01_010400_20210422T090612.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.07367475292004 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1916  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T175127_20210420T193258_18236_01_010400_20210422T111741.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.11859838274933 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1917  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210420T193258_20210420T211428_18237_01_010400_20210422T131357.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.16352201257862 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1918  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T003728_20210421T021859_18240_01_010400_20210422T171319.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.20844564240791 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1919  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T021859_20210421T040029_18241_01_010400_20210422T185036.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.25336927223721 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1920  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T040029_20210421T054159_18242_01_010400_20210422T210719.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.660  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.131e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-21 04:57:09.333000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.094e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.131e+00 DU\n",
      "VCD_trop:  1.025e+00 DU\n",
      "SCD:  9.720e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "86.29829290206649 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1921  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T054159_20210421T072329_18243_01_010400_20210422T231138.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.34321653189578 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1922  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T155101_20210421T173231_18249_01_010400_20210423T090108.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.38814016172506 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1923  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T173231_20210421T191401_18250_01_010400_20210423T105921.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.43306379155436 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1924  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210421T191401_20210421T205532_18251_01_010400_20210423T124607.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.47798742138365 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1925  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T001832_20210422T020003_18254_01_010400_20210423T171222.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.52291105121293 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1926  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T020003_20210422T034133_18255_01_010400_20210423T183023.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.56783468104223 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1927  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T034133_20210422T052303_18256_01_010400_20210423T210235.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.897  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.714e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-22 04:38:17.415000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "86.61275831087151 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1928  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T052303_20210422T070433_18257_01_010400_20210423T225424.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.6576819407008 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1929  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T153205_20210422T171335_18263_01_010400_20210424T084115.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.7026055705301 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1930  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T171335_20210422T185505_18264_01_010400_20210424T104405.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.74752920035938 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1931  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T185505_20210422T203635_18265_01_010400_20210424T122843.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.79245283018868 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1932  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210422T235936_20210423T014106_18268_01_010400_20210424T163021.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.83737646001796 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1933  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T014106_20210423T032236_18269_01_010400_20210424T183027.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.88230008984726 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1934  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T032236_20210423T050407_18270_01_010400_20210424T203809.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   27.913  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.474e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-23 04:19:33.137000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "86.92722371967655 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1935  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T050407_20210423T064537_18271_01_010400_20210424T222831.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "86.97214734950583 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1936  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T151308_20210423T165439_18277_01_010400_20210425T085319.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.01707097933513 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1937  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T165439_20210423T183609_18278_01_010400_20210425T103259.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.06199460916442 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1938  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T183609_20210423T201739_18279_01_010400_20210425T122139.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.10691823899371 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1939  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210423T234040_20210424T012210_18282_01_010400_20210425T162910.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.151841868823 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1940  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T012210_20210424T030340_18283_01_010400_20210425T181659.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.1967654986523 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1941  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T030340_20210424T044510_18284_01_010400_20210425T200559.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.966  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.851e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-24 04:00:55.500000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "87.24168912848158 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1942  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T044510_20210424T062641_18285_01_010400_20210425T220317.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.28661275831087 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1943  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T145412_20210424T163542_18291_01_010400_20210426T080107.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.33153638814017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1944  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T163542_20210424T181712_18292_01_010400_20210426T100131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.37646001796945 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1945  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T181712_20210424T195843_18293_01_010400_20210426T120420.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.42138364779875 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1946  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210424T195843_20210424T214013_18294_01_010400_20210426T130153.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.46630727762803 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1947  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T010314_20210425T024444_18297_01_010400_20210426T175945.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.51123090745733 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1948  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T024444_20210425T042614_18298_01_010400_20210426T193907.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.249  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.369e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-25 03:42:23.803000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.528e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.369e-01 DU\n",
      "VCD_trop:  1.200e-01 DU\n",
      "SCD:  5.239e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "87.55615453728662 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1949  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T042614_20210425T060744_18299_01_010400_20210426T214149.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.682  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.051e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-25 05:22:27.185000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.864e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.051e-01 DU\n",
      "VCD_trop:  1.849e-01 DU\n",
      "SCD:  5.040e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "87.6010781671159 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1950  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T060744_20210425T074915_18300_01_010400_20210426T230415.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.6460017969452 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1951  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T161646_20210425T175816_18306_01_010400_20210427T091807.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.69092542677448 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1952  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T175816_20210425T193946_18307_01_010400_20210427T111905.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.73584905660378 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1953  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210425T193946_20210425T212117_18308_01_010400_20210427T124122.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.78077268643307 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1954  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T004417_20210426T022547_18311_01_010400_20210427T174709.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.82569631626235 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1955  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T022547_20210426T040718_18312_01_010400_20210427T192724.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.87061994609164 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1956  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T040718_20210426T054848_18313_01_010400_20210427T212858.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   37.245  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.280e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-26 05:03:26.270000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "87.91554357592094 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1957  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T054848_20210426T073018_18314_01_010400_20210427T224123.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "87.96046720575022 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1958  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T155749_20210426T173920_18320_01_010400_20210428T085614.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.0053908355795 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1959  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T173920_20210426T192050_18321_01_010400_20210428T105524.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.0503144654088 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1960  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210426T192050_20210426T210220_18322_01_010400_20210428T123628.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.09523809523809 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1961  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T002521_20210427T020651_18325_01_010400_20210428T171856.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.14016172506739 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1962  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T020651_20210427T034821_18326_01_010400_20210428T192002.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.18508535489667 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1963  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T034821_20210427T052951_18327_01_010400_20210428T211904.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.715  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.352e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-27 04:44:31.952000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "88.23000898472596 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1964  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T052951_20210427T071122_18328_01_010400_20210428T222959.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.27493261455525 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1965  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T153853_20210427T172023_18334_01_010400_20210429T083142.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.31985624438454 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1966  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T172023_20210427T190153_18335_01_010400_20210429T103531.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.36477987421384 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1967  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210427T190153_20210427T204323_18336_01_010400_20210429T121708.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.40970350404312 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1968  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T000624_20210428T014754_18339_01_010400_20210429T170715.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.45462713387242 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1969  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T014754_20210428T032924_18340_01_010400_20210429T190844.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.4995507637017 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1970  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T032924_20210428T051055_18341_01_010400_20210429T204112.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.567  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.965e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-28 04:25:44.834000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "88.54447439353099 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1971  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T051055_20210428T065225_18342_01_010400_20210429T221207.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.58939802336029 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1972  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T151956_20210428T170126_18348_01_010400_20210430T082542.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.63432165318957 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1973  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T170126_20210428T184256_18349_01_010400_20210430T101349.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.67924528301887 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1974  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T184256_20210428T202427_18350_01_010400_20210430T115555.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.72416891284816 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1975  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210428T234727_20210429T012857_18353_01_010400_20210430T165520.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.76909254267746 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1976  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T012857_20210429T031028_18354_01_010400_20210430T182311.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.81401617250674 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1977  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T031028_20210429T045158_18355_01_010400_20210430T202057.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.163  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.426e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-29 04:07:05.753000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.158e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.426e-01 DU\n",
      "VCD_trop:  4.957e-01 DU\n",
      "SCD:  8.850e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "88.85893980233602 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1978  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T045158_20210429T063328_18356_01_010400_20210430T221956.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.90386343216532 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1979  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T150059_20210429T164229_18362_01_010400_20210501T080230.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.94878706199461 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1980  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T164229_20210429T182400_18363_01_010400_20210501T093929.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "88.9937106918239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1981  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T182400_20210429T200530_18364_01_010400_20210501T114217.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.03863432165319 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1982  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210429T200530_20210429T214700_18365_01_010400_20210501T130358.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.08355795148249 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1983  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T011001_20210430T025131_18368_01_010400_20210501T180614.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.12848158131177 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1984  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T025131_20210430T043301_18369_01_010400_20210501T194509.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.245  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.670e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-04-30 03:48:32.110000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "89.17340521114106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1985  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T043301_20210430T061431_18370_01_010400_20210501T215004.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "89.21832884097036 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1986  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T061431_20210430T075602_18371_01_010400_20210501T232150.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.26325247079964 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1987  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T144202_20210430T162333_18376_01_010400_20210502T074848.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.30817610062893 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1988  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T162333_20210430T180503_18377_01_010400_20210502T092717.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.35309973045821 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1989  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T180503_20210430T194633_18378_01_010400_20210502T112327.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.39802336028751 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1990  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210430T194633_20210430T212803_18379_01_010400_20210502T125916.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.4429469901168 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1991  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T005104_20210501T023234_18382_01_010400_20210502T175939.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.4878706199461 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1992  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T023234_20210501T041404_18383_01_010400_20210502T193021.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "89.53279424977538 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1993  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T041404_20210501T055534_18384_01_010400_20210502T211822.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.440  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.568e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-01 05:09:44.527000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "89.57771787960466 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1994  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T055534_20210501T073705_18385_01_010400_20210502T232330.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.62264150943396 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1995  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T142306_20210501T160436_18390_01_010400_20210503T072239.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.66756513926325 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1996  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T160436_20210501T174606_18391_01_010400_20210503T090907.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.71248876909254 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1997  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T174606_20210501T192736_18392_01_010400_20210503T105718.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.75741239892183 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1998  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210501T192736_20210501T210906_18393_01_010400_20210503T123746.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.80233602875113 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "1999  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T003207_20210502T021337_18396_01_010400_20210503T173158.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.84725965858041 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2000  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T021337_20210502T035507_18397_01_010400_20210503T191422.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.8921832884097 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2001  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T035507_20210502T053637_18398_01_010400_20210503T205946.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.060  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.833e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-02 04:50:47.202000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.035e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.833e-01 DU\n",
      "VCD_trop:  1.374e-01 DU\n",
      "SCD:  4.705e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "89.937106918239 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2002  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T053637_20210502T071808_18399_01_010400_20210503T224404.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "89.98203054806828 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2003  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T140409_20210502T154539_18404_01_010400_20210504T072111.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.02695417789758 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2004  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T154539_20210502T172709_18405_01_010400_20210504T085054.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.07187780772686 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2005  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T172709_20210502T190839_18406_01_010400_20210504T103124.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.11680143755616 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2006  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210502T190839_20210502T205009_18407_01_010400_20210504T121547.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.16172506738545 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2007  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T001310_20210503T015440_18410_01_010400_20210504T172025.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.20664869721473 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2008  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T015440_20210503T033610_18411_01_010400_20210504T190930.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.25157232704403 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2009  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T033610_20210503T051740_18412_01_010400_20210504T204451.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   35.318  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.746e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-03 04:31:58.075000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.986e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.746e-01 DU\n",
      "VCD_trop:  4.546e-01 DU\n",
      "SCD:  6.985e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "90.29649595687331 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2010  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T051740_20210503T065911_18413_01_010400_20210504T223113.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.34141958670261 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2011  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T152642_20210503T170812_18419_01_010400_20210505T083530.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.3863432165319 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2012  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T170812_20210503T184942_18420_01_010400_20210505T101344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.4312668463612 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2013  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T184942_20210503T203112_18421_01_010400_20210505T115435.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.47619047619048 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2014  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210503T235413_20210504T013543_18424_01_010400_20210505T171010.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.52111410601977 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2015  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T013543_20210504T031713_18425_01_010400_20210505T182510.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.56603773584906 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2016  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T031713_20210504T045843_18426_01_010400_20210505T203147.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.730  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.951e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-04 04:13:16.108000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "90.61096136567835 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2017  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T045843_20210504T064013_18427_01_010400_20210505T220040.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.65588499550763 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2018  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T132614_20210504T150744_18432_01_010400_20210506T064533.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.70080862533693 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2019  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T164914_20210504T183045_18434_01_010400_20210506T100415.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.74573225516622 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2020  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T183045_20210504T201215_18435_01_010400_20210506T114503.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.7906558849955 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2021  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210504T233515_20210505T011646_18438_01_010400_20210506T163752.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.83557951482479 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2022  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T011646_20210505T025816_18439_01_010400_20210506T180238.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "90.88050314465409 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2023  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T025816_20210505T043946_18440_01_010400_20210506T194902.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.153  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.121e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-05 03:54:41.102000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.026e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.121e-01 DU\n",
      "VCD_trop:  1.839e-01 DU\n",
      "SCD:  6.290e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "90.92542677448337 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2024  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T043946_20210505T062116_18441_01_010400_20210506T215615.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.025  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.086e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-05 05:35:06.443000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.978e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.086e-01 DU\n",
      "VCD_trop:  1.745e-01 DU\n",
      "SCD:  7.189e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "90.97035040431267 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2025  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T062116_20210505T080246_18442_01_010400_20210506T232857.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.01527403414195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2026  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T144847_20210505T163017_18447_01_010400_20210507T074746.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.06019766397125 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2027  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T181147_20210505T195318_18449_01_010400_20210507T114340.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.10512129380054 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2028  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210505T195318_20210505T213448_18450_01_010400_20210507T125846.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.15004492362982 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2029  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T005748_20210506T023918_18453_01_010400_20210507T175052.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.19496855345912 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2030  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T023918_20210506T042048_18454_01_010400_20210507T192409.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.296  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "6.131e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-06 03:36:10.056000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.949e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  6.131e-01 DU\n",
      "VCD_trop:  4.916e-01 DU\n",
      "SCD:  8.677e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "91.2398921832884 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2031  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T042048_20210506T060219_18455_01_010400_20210507T213409.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.097  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [67.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.328e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-06 05:16:02.637000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "91.2848158131177 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2032  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T060219_20210506T074349_18456_01_010400_20210507T231458.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.32973944294699 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2033  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T142950_20210506T161120_18461_01_010400_20210508T073452.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.37466307277629 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2034  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T161120_20210506T175250_18462_01_010400_20210508T092954.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.41958670260557 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2035  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210506T193420_20210506T211550_18464_01_010400_20210508T130242.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.46451033243486 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2036  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T003851_20210507T022021_18467_01_010400_20210508T181217.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.50943396226415 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2037  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T022021_20210507T040151_18468_01_010400_20210508T191535.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.55435759209344 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2038  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T040151_20210507T054321_18469_01_010400_20210508T205936.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.914  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.798e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-07 04:57:03.151000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.848e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.798e-01 DU\n",
      "VCD_trop:  1.328e-01 DU\n",
      "SCD:  5.023e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "91.59928122192274 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2039  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T054321_20210507T072451_18470_01_010400_20210508T231817.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.64420485175202 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2040  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T141052_20210507T155222_18475_01_010400_20210509T071426.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.68912848158132 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2041  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T155222_20210507T173353_18476_01_010400_20210509T090829.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.7340521114106 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2042  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210507T173353_20210507T191523_18477_01_010400_20210509T111250.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.77897574123989 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2043  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T001953_20210508T020123_18481_01_010400_20210509T175113.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.82389937106919 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2044  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T020123_20210508T034254_18482_01_010400_20210509T183856.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.86882300089847 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2045  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T034254_20210508T052424_18483_01_010400_20210509T204422.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.384  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.269e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-08 04:38:11.013000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.493e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.269e-01 DU\n",
      "VCD_trop:  7.378e-02 DU\n",
      "SCD:  4.063e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "91.91374663072777 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2046  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T052424_20210508T070554_18484_01_010400_20210509T224341.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "91.95867026055706 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2047  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T135155_20210508T153325_18489_01_010400_20210510T071326.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.00359389038636 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2048  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T153325_20210508T171455_18490_01_010400_20210510T090650.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.04851752021564 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2049  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T171455_20210508T185625_18491_01_010400_20210510T104733.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.09344115004492 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2050  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210508T185625_20210508T203755_18492_01_010400_20210510T122611.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.13836477987421 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2051  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T000056_20210509T014226_18495_01_010400_20210510T172037.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.18328840970351 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2052  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T014226_20210509T032356_18496_01_010400_20210510T183344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.22821203953279 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2053  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T030458_20210510T044628_18511_01_010400_20210511T195150.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.457  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.086e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-10 04:00:49.354000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "92.27313566936208 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2054  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T032356_20210509T050526_18497_01_010400_20210510T202725.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.115  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.453e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-09 04:19:26.764000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  2.512e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.453e-01 DU\n",
      "VCD_trop:  9.745e-02 DU\n",
      "SCD:  4.266e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "92.31805929919138 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2055  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T050526_20210509T064656_18498_01_010400_20210510T222834.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.36298292902066 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2056  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T133257_20210509T151427_18503_01_010400_20210511T070714.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.40790655884994 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2057  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T151427_20210509T165557_18504_01_010400_20210511T085117.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.45283018867924 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2058  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T165557_20210509T183727_18505_01_010400_20210511T103309.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.49775381850853 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2059  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T183727_20210509T201858_18506_01_010400_20210511T123019.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.54267744833783 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2060  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210509T234158_20210510T012328_18509_01_010400_20210511T163855.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.58760107816711 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2061  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T012328_20210510T030458_18510_01_010400_20210511T180519.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.63252470799641 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2062  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T044628_20210510T062758_18512_01_010400_20210511T215959.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.6774483378257 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2063  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T145529_20210510T163659_18518_01_010400_20210512T083121.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.72237196765498 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2064  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T163659_20210510T181830_18519_01_010400_20210512T101841.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.76729559748428 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2065  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T181830_20210510T200000_18520_01_010400_20210512T115224.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.81221922731356 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2066  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210510T200000_20210510T214130_18521_01_010400_20210512T132825.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.85714285714286 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2067  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T010430_20210511T024600_18524_01_010400_20210512T174056.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "92.90206648697215 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2068  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T024600_20210511T042730_18525_01_010400_20210512T194350.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.221  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.948e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-11 03:42:18.304000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.187e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.948e-01 DU\n",
      "VCD_trop:  1.668e-01 DU\n",
      "SCD:  5.311e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "92.94699011680144 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2069  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T042730_20210511T060901_18526_01_010400_20210512T212830.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.757  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.605e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-11 05:22:20.966000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.301e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.605e-01 DU\n",
      "VCD_trop:  2.232e-01 DU\n",
      "SCD:  5.519e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "92.99191374663073 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2070  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T060901_20210511T075031_18527_01_010400_20210512T232219.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.03683737646001 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2071  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T143631_20210511T161801_18532_01_010400_20210513T075527.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.08176100628931 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2072  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T161801_20210511T175932_18533_01_010400_20210513T093815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.1266846361186 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2073  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T175932_20210511T194102_18534_01_010400_20210513T112238.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.1716082659479 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2074  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210511T194102_20210511T212232_18535_01_010400_20210513T132013.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.21653189577718 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2075  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T004532_20210512T022702_18538_01_010400_20210513T172122.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.26145552560648 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2076  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T022702_20210512T040833_18539_01_010400_20210513T191627.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.30637915543576 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2077  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T040833_20210512T055003_18540_01_010400_20210513T213936.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.641  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.055e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-12 05:03:19.836000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.687e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.055e-01 DU\n",
      "VCD_trop:  2.625e-01 DU\n",
      "SCD:  6.074e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "93.35130278526505 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2078  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T055003_20210512T073133_18541_01_010400_20210513T230536.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.39622641509435 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2079  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T141733_20210512T155904_18546_01_010400_20210514T071833.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.44115004492363 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2080  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T155904_20210512T174034_18547_01_010400_20210514T091543.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.48607367475293 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2081  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T174034_20210512T192204_18548_01_010400_20210514T105602.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.53099730458221 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2082  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210512T192204_20210512T210334_18549_01_010400_20210514T124923.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.5759209344115 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2083  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T002634_20210513T020804_18552_01_010400_20210514T171857.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.62084456424078 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2084  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T020804_20210513T034935_18553_01_010400_20210514T184132.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.66576819407008 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2085  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T034935_20210513T053105_18554_01_010400_20210514T211133.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.989  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "1.499e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-13 04:44:25.746000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  1.126e+00 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  1.499e+00 DU\n",
      "VCD_trop:  1.354e+00 DU\n",
      "SCD:  1.565e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "93.71069182389937 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2086  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T053105_20210513T071235_18555_01_010400_20210514T224345.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.75561545372865 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2087  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T135835_20210513T154005_18560_01_010400_20210515T072653.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.80053908355795 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2088  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T154005_20210513T172136_18561_01_010400_20210515T090633.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.84546271338723 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2089  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T172136_20210513T190306_18562_01_010400_20210515T110455.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.89038634321653 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2090  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210513T190306_20210513T204436_18563_01_010400_20210515T122909.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.93530997304582 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2091  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T000736_20210514T014906_18566_01_010400_20210515T170659.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "93.9802336028751 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2092  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T014906_20210514T033036_18567_01_010400_20210515T184811.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.0251572327044 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2093  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T033036_20210514T051206_18568_01_010400_20210515T205049.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   40.150  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.792e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-14 04:25:38.738000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.073e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.792e-01 DU\n",
      "VCD_trop:  3.432e-01 DU\n",
      "SCD:  4.987e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "94.07008086253369 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2094  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T051206_20210514T065337_18569_01_010400_20210515T223811.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.11500449236298 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2095  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T133937_20210514T152107_18574_01_010400_20210516T071314.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.15992812219227 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2096  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T152107_20210514T170237_18575_01_010400_20210516T084034.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.20485175202157 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2097  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T170237_20210514T184407_18576_01_010400_20210516T104311.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.24977538185085 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2098  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T184407_20210514T202538_18577_01_010400_20210516T122600.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.29469901168014 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2099  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210514T234838_20210515T013008_18580_01_010400_20210516T165540.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.33962264150944 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2100  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T013008_20210515T031138_18581_01_010400_20210516T181940.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.38454627133872 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2101  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T031138_20210515T045308_18582_01_010400_20210516T203025.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.090  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.738e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-15 04:06:59.211000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "94.42946990116802 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2102  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T045308_20210515T063438_18583_01_010400_20210516T222229.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.4743935309973 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2103  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T150209_20210515T164339_18589_01_010400_20210517T082037.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.5193171608266 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2104  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T164339_20210515T182509_18590_01_010400_20210517T100628.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.56424079065589 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2105  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T182509_20210515T200639_18591_01_010400_20210517T120524.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.60916442048517 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2106  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210515T200639_20210515T214809_18592_01_010400_20210517T130726.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.65408805031447 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2107  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T011110_20210516T025240_18595_01_010400_20210517T181322.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.69901168014376 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2108  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T025240_20210516T043410_18596_01_010400_20210517T194846.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.029  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.203e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-16 03:48:26.004000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "94.74393530997305 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2109  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T043410_20210516T061540_18597_01_010400_20210517T220539.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   34.013  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.101e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-16 05:28:40.185000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "94.78885893980234 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2110  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T061540_20210516T075710_18598_01_010400_20210517T232801.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.83378256963164 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2111  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T144311_20210516T162441_18603_01_010400_20210518T075145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.87870619946092 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2112  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T162441_20210516T180611_18604_01_010400_20210518T093348.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.9236298292902 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2113  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T180611_20210516T194741_18605_01_010400_20210518T112933.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "94.9685534591195 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2114  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210516T194741_20210516T212911_18606_01_010400_20210518T125025.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.01347708894879 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2115  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T005211_20210517T023341_18609_01_010400_20210518T180145.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.05840071877807 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2116  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T023341_20210517T041511_18610_01_010400_20210518T194013.nc\n",
      "* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon\n",
      "* Skipping current file / moving to the next file\n",
      "95.10332434860736 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2117  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T041511_20210517T055641_18611_01_010400_20210518T213135.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   33.216  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.022e+00\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-17 05:09:37.454000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "95.14824797843666 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2118  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T055641_20210517T073812_18612_01_010400_20210518T230301.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.19317160826594 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2119  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T142412_20210517T160542_18617_01_010400_20210519T072831.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.23809523809523 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2120  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T160542_20210517T174712_18618_01_010400_20210519T093813.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.28301886792453 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2121  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T174712_20210517T192842_18619_01_010400_20210519T112247.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.32794249775381 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2122  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210517T192842_20210517T211012_18620_01_010400_20210519T125432.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.37286612758311 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2123  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T003313_20210518T021443_18623_01_010400_20210519T173431.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.4177897574124 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2124  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T021443_20210518T035613_18624_01_010400_20210519T190333.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.46271338724169 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2125  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T035613_20210518T053743_18625_01_010400_20210519T211854.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.401  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "9.921e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-18 04:50:40.961000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  8.045e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  9.921e-01 DU\n",
      "VCD_trop:  8.468e-01 DU\n",
      "SCD:  1.201e+00 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "95.50763701707098 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2126  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T053743_20210518T071913_18626_01_010400_20210519T225200.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.55256064690026 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2127  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T140513_20210518T154643_18631_01_010400_20210520T071102.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.59748427672956 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2128  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T154643_20210518T172814_18632_01_010400_20210520T091352.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.64240790655884 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2129  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T172814_20210518T190944_18633_01_010400_20210520T111008.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.68733153638814 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2130  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210518T190944_20210518T205114_18634_01_010400_20210520T121945.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.73225516621743 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2131  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T015544_20210519T033714_18638_01_010400_20210520T191012.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.77717879604673 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2132  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T033714_20210519T051844_18639_01_010400_20210520T204547.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.293  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.720e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-19 04:31:51.068000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  6.349e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  7.720e-01 DU\n",
      "VCD_trop:  6.337e-01 DU\n",
      "SCD:  8.705e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "95.82210242587601 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2133  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T051844_20210519T070014_18640_01_010400_20210520T222215.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.8670260557053 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2134  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T134615_20210519T152745_18645_01_010400_20210521T071140.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.9119496855346 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2135  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T152745_20210519T170915_18646_01_010400_20210521T083018.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "95.95687331536388 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2136  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T170915_20210519T185045_18647_01_010400_20210521T104456.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.00179694519318 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2137  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T185045_20210519T203215_18648_01_010400_20210521T120722.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.04672057502246 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2138  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210519T235515_20210520T013645_18651_01_010400_20210521T165446.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.09164420485176 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2139  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T013645_20210520T031815_18652_01_010400_20210521T183121.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.13656783468105 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2140  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T031815_20210520T045945_18653_01_010400_20210521T201716.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.038  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.329e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-20 04:13:09.454000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "96.18149146451033 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2141  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T045945_20210520T064115_18654_01_010400_20210521T220947.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.22641509433963 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2142  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T150846_20210520T165016_18660_01_010400_20210522T080257.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.27133872416891 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2143  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T165016_20210520T183146_18661_01_010400_20210522T101911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.31626235399821 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2144  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T183146_20210520T201316_18662_01_010400_20210522T123840.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.3611859838275 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2145  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210520T233616_20210521T011746_18665_01_010400_20210522T164204.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.40610961365678 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2146  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T011746_20210521T025916_18666_01_010400_20210522T181712.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.45103324348608 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2147  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T025916_20210521T044046_18667_01_010400_20210522T201044.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.711  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.183e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-21 03:54:34.530000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "96.49595687331536 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2148  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T044046_20210521T062216_18668_01_010400_20210522T215733.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.086  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.609e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-21 05:34:59.271000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "96.54088050314465 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2149  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T062216_20210521T080347_18669_01_010400_20210522T231711.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.58580413297393 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2150  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T144947_20210521T163117_18674_01_010400_20210523T081139.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.63072776280323 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2151  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T163117_20210521T181247_18675_01_010400_20210523T101502.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.67565139263252 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2152  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T181247_20210521T195417_18676_01_010400_20210523T113131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.72057502246182 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2153  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210521T195417_20210521T213547_18677_01_010400_20210523T124908.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.7654986522911 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2154  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T005847_20210522T024017_18680_01_010400_20210523T175100.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.8104222821204 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2155  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T024017_20210522T042147_18681_01_010400_20210523T194937.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.048  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.437e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-22 03:36:03.356000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.864e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.437e-01 DU\n",
      "VCD_trop:  3.186e-01 DU\n",
      "SCD:  8.066e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "96.85534591194968 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2156  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T042147_20210522T060317_18682_01_010400_20210523T212401.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.328  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.153e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-22 05:15:55.697000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.653e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  4.153e-01 DU\n",
      "VCD_trop:  2.835e-01 DU\n",
      "SCD:  6.915e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "96.90026954177897 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2157  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T060317_20210522T074447_18683_01_010400_20210523T230804.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.94519317160827 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2158  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T161218_20210522T175348_18689_01_010400_20210524T093744.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "96.99011680143755 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2159  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T175348_20210522T193518_18690_01_010400_20210524T111644.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.03504043126685 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2160  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210522T193518_20210522T211648_18691_01_010400_20210524T123551.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.07996406109613 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2161  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T003948_20210523T022118_18694_01_010400_20210524T174220.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.12488769092543 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2162  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T022118_20210523T040248_18695_01_010400_20210524T191050.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.16981132075472 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2163  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T040248_20210523T054418_18696_01_010400_20210524T205225.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.631  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.283e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-23 04:56:56.203000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "97.214734950584 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2164  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T054418_20210523T072548_18697_01_010400_20210524T230403.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.2596585804133 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2165  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T173449_20210523T191619_18704_01_010400_20210525T110923.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.30458221024259 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2166  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210523T191619_20210523T205749_18705_01_010400_20210525T122039.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.34950584007188 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2167  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T002049_20210524T020219_18708_01_010400_20210525T171417.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.39442946990117 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2168  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T020219_20210524T034349_18709_01_010400_20210525T190250.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.43935309973047 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2169  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T034349_20210524T052519_18710_01_010400_20210525T203659.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.366  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "5.555e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-24 04:38:04.146000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  4.578e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  5.555e-01 DU\n",
      "VCD_trop:  4.187e-01 DU\n",
      "SCD:  6.798e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "97.48427672955975 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2170  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T052519_20210524T070649_18711_01_010400_20210525T223332.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.52920035938904 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2171  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T135249_20210524T153419_18716_01_010400_20210526T065911.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.57412398921834 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2172  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T153419_20210524T171549_18717_01_010400_20210526T084738.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.61904761904762 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2173  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210524T185719_20210524T203849_18719_01_010400_20210526T122546.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.66397124887692 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2174  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T000150_20210525T014320_18722_01_010400_20210526T165131.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.7088948787062 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2175  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T014320_20210525T032450_18723_01_010400_20210526T182402.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.75381850853549 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2176  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T032450_20210525T050620_18724_01_010400_20210526T203600.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   28.005  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.992e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-25 04:19:20.249000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "97.79874213836479 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2177  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T050620_20210525T064750_18725_01_010400_20210526T221111.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.84366576819407 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2178  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T133350_20210525T151520_18730_01_010400_20210527T063832.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.88858939802336 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2179  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T151520_20210525T165650_18731_01_010400_20210527T082630.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.93351302785265 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2180  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T165650_20210525T183820_18732_01_010400_20210527T100635.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "97.97843665768194 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2181  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210525T234250_20210526T012420_18736_01_010400_20210527T163834.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.02336028751122 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2182  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T012420_20210526T030550_18737_01_010400_20210527T180929.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.06828391734052 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2183  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T030550_20210526T044720_18738_01_010400_20210527T200325.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   30.906  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.108e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-26 04:00:42.951000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.154e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  3.108e-01 DU\n",
      "VCD_trop:  1.713e-01 DU\n",
      "SCD:  4.787e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "98.11320754716981 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2184  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T044720_20210526T062850_18739_01_010400_20210527T220629.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.15813117699909 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2185  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T145620_20210526T163750_18745_01_010400_20210528T081727.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.20305480682839 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2186  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T163750_20210526T181920_18746_01_010400_20210528T100711.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.24797843665768 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2187  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210526T181920_20210526T200050_18747_01_010400_20210528T113110.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.29290206648697 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2188  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T010520_20210527T024650_18751_01_010400_20210528T175126.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.33782569631626 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2189  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T024650_20210527T042820_18752_01_010400_20210528T194521.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   31.342  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.136e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-27 03:42:11.174000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "98.38274932614556 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2190  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T042820_20210527T060950_18753_01_010400_20210528T212950.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   39.473  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.475e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-27 05:22:13.955000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "98.42767295597484 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2191  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T060950_20210527T075121_18754_01_010400_20210528T231622.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.47259658580413 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2192  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T143721_20210527T161851_18759_01_010400_20210529T072630.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.51752021563343 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2193  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T161851_20210527T180021_18760_01_010400_20210529T092751.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.56244384546271 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2194  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T180021_20210527T194151_18761_01_010400_20210529T111205.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.60736747529201 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2195  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210527T194151_20210527T212321_18762_01_010400_20210529T125534.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.6522911051213 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2196  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T004621_20210528T022751_18765_01_010400_20210529T174344.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.69721473495059 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2197  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T022751_20210528T040921_18766_01_010400_20210529T192245.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.74213836477988 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2198  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T040921_20210528T055051_18767_01_010400_20210529T210737.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   36.521  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "4.123e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-28 05:03:13.020000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "98.78706199460916 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2199  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T055051_20210528T073221_18768_01_010400_20210529T230940.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.83198562443846 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2200  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T141821_20210528T155951_18773_01_010400_20210530T070300.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.87690925426774 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2201  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T155951_20210528T174121_18774_01_010400_20210530T085247.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.92183288409704 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2202  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210528T192251_20210528T210421_18776_01_010400_20210530T110109.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "98.96675651392633 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2203  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T002721_20210529T020851_18779_01_010400_20210530T173203.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.01168014375563 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2204  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T020851_20210529T035021_18780_01_010400_20210530T190815.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.05660377358491 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2205  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T035021_20210529T053151_18781_01_010400_20210530T205848.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   32.804  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [33.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "3.123e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-29 04:44:18.205000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "99.1015274034142 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2206  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T053151_20210529T071321_18782_01_010400_20210530T223215.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.1464510332435 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2207  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T135921_20210529T154051_18787_01_010400_20210531T070441.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.19137466307278 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2208  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T154051_20210529T172221_18788_01_010400_20210531T085148.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.23629829290206 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2209  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T172221_20210529T190351_18789_01_010400_20210531T104024.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.28122192273136 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2210  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210529T190351_20210529T204521_18790_01_010400_20210531T123038.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.32614555256065 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2211  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T000821_20210530T014951_18793_01_010400_20210531T171217.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.37106918238993 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2212  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T014951_20210530T033121_18794_01_010400_20210531T183512.nc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.41599281221923 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2213  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T033121_20210530T051251_18795_01_010400_20210531T202930.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.622  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "1  /  1\n",
      "qa value for collocated pixels: \n",
      " [100.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "2.895e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-30 04:25:31.550000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:  3.004e-01 DU\n",
      "VCD_summed (VCD_trop+VCD_strat):  2.895e-01 DU\n",
      "VCD_trop:  1.527e-01 DU\n",
      "SCD:  4.340e-01 DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "99.46091644204851 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2214  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T051251_20210530T065421_18796_01_010400_20210531T223707.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.5058400718778 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2215  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T134021_20210530T152151_18801_01_010400_20210601T065629.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.5507637017071 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2216  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T152151_20210530T170321_18802_01_010400_20210601T080821.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.59568733153638 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2217  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T170321_20210530T184451_18803_01_010400_20210601T101502.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.64061096136568 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2218  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T184451_20210530T202621_18804_01_010400_20210601T122210.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.68553459119497 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2219  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210530T234921_20210531T013051_18807_01_010400_20210601T164730.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.73045822102425 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2220  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T013051_20210531T031221_18808_01_010400_20210601T181521.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.77538185085355 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2221  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T031221_20210531T045351_18809_01_010400_20210601T200636.nc\n",
      "Threshold qa value: must exceed  75\n",
      "Average Validity exceeding the qa_value threshold (> 75 ):   29.442  %\n",
      "\n",
      "Number of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded\n",
      "0  /  1\n",
      "qa value for collocated pixels: \n",
      " [74.]\n",
      "\n",
      "The original VCD_summed (Trop+Strat) value for collocated pixels (DU): \n",
      "7.561e-01\n",
      "\n",
      "Average time of the collocated pixels:  2021-05-31 04:06:52.373000\n",
      "\n",
      "Average column densities for valid (filtered with qa flag) collocated pixels\n",
      "VCD:     nan DU\n",
      "VCD_summed (VCD_trop+VCD_strat):     nan DU\n",
      "VCD_trop:     nan DU\n",
      "SCD:     nan DU\n",
      "[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]\n",
      "99.82030548068283 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2222  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T045351_20210531T063521_18810_01_010400_20210601T215208.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.86522911051213 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2223  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T150251_20210531T164421_18816_01_010400_20210602T075601.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.91015274034142 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2224  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T164421_20210531T182551_18817_01_010400_20210602T101041.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "99.95507637017072 % completed\n",
      "\n",
      "\n",
      "\n",
      "---------------------------------------- Loading New File --------------------------------------------\n",
      "2225  :  /home/jwpark/TROPOMI/data/TCN/EastAsia/S5P_OFFL_L2__NO2____20210531T182551_20210531T200721_18818_01_010400_20210602T120928.nc\n",
      "*** There is no collocated pixel with Pandora at  Seoul_SNU  +/- 0.25 deg\n",
      "*** Skipping current file / moving to the next file\n",
      "100.0 % completed\n",
      "\n"
     ]
    }
   ],
   "source": [
    "# Reading and processing the data \n",
    "# Sequentially read relevant satellite data and find pixel corresponding to predetermined lat-lon\n",
    "# Then saving the data in ASCII or binary file (basically a time series data)\n",
    "\n",
    "############################# Final Variables to be stored ##############################\n",
    "# Column densities (VCDs, SCD, trop_VCD, etc.) of NO2 is in [mol m-2]\n",
    "# There can be a NaN value in final sciencedata when the swath includes the Pandora site but the retrieval wasn't successful (i.e., thick clouds)\n",
    "# Should use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)\n",
    "timedata=np.array([], ndmin=2)  # 7 variables (columns) [yy,mm,dd,hh,min,sec,microsec]\n",
    "sciencedata=np.array([], ndmin=2)  # 6 variables (columns) [VCD, VCDsummed, VCD_trop, SCD, qa_value, no. QA-valid pixels]\n",
    "geodata=np.array([], ndmin=2)  # 10 variables (columns) [lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]\n",
    "#########################################################################################\n",
    "validfilecount=0\n",
    "\n",
    "for fno, fname in enumerate(files3):\n",
    "    \n",
    "    # Reading the hdf5 files with h5py\n",
    "    print('\\n\\n---------------------------------------- Loading New File --------------------------------------------')\n",
    "    print(fno, ' : ', fname)\n",
    "    \n",
    "    f=h5py.File(fname, 'r')\n",
    "    #f=h5py.File(datdir+fname, 'r')\n",
    "    #print(f.keys())\n",
    "    #metadata=f.get('METADATA')\n",
    "\n",
    "    product=f.get('PRODUCT')\n",
    "    VCD_trop=product.get('nitrogendioxide_tropospheric_column')\n",
    "    qa_value=product.get('qa_value')\n",
    "    lon_center=product.get('longitude')\n",
    "    lat_center=product.get('latitude')\n",
    "    #time=product.get('time') # time in seconds since 2010-01-01 00:00:00 \n",
    "    time=product.get('time_utc') # time in string type (ISO 8601)\n",
    "\n",
    "    supportdata=product.get('SUPPORT_DATA')\n",
    "\n",
    "    detailed_results=supportdata.get('DETAILED_RESULTS')\n",
    "\n",
    "    VCD=detailed_results.get('nitrogendioxide_total_column') # converted from SCD and the AMF based on TM5 profile\n",
    "    VCD_summed=detailed_results.get('nitrogendioxide_summed_total_column') # summation of Troposhperic column + Stratospheric column\n",
    "    ghost=detailed_results.get('nitrogendioxide_ghost_column')\n",
    "    SCD=detailed_results.get('nitrogendioxide_slant_column_density')\n",
    "\n",
    "    geolocations=supportdata.get('GEOLOCATIONS')\n",
    "\n",
    "    # Corner lat-lon of each pixels\n",
    "    # corner indices starts at 0 and moves counter-clockwise, starting from south-western corner of the pixel\n",
    "    lat_corner=geolocations.get('latitude_bounds')\n",
    "    lon_corner=geolocations.get('longitude_bounds')\n",
    "\n",
    "    # making the variables into np.array to process easily in python\n",
    "    VCD_trop=np.array(VCD_trop)\n",
    "    VCD=np.array(VCD)\n",
    "    VCD_summed=np.array(VCD_summed)\n",
    "    SCD=np.array(SCD)\n",
    "\n",
    "    qa_value=np.array(qa_value)\n",
    "\n",
    "    lon_center=np.array(lon_center)\n",
    "    lat_center=np.array(lat_center)\n",
    "    lon_corner=np.array(lon_corner)\n",
    "    lat_corner=np.array(lat_corner)\n",
    "\n",
    "    time=np.array(time)\n",
    "    timeN=np.zeros([lat_center.shape[0], lat_center.shape[1], lat_center.shape[2]]).astype(np.string_)\n",
    "    # Making 'time' variable to have same dimension with other variables\n",
    "    for i in np.arange(lat_center.shape[2]):\n",
    "        timeN[0,:,i]=time[0,:]\n",
    "    \n",
    "    time=timeN\n",
    "    \n",
    "    \n",
    "#     # Brief check-up whether the variables are successfully read. \n",
    "#     # Check the dimension of each variables (arrays)\n",
    "#     print('Size and dimension of each variables')\n",
    "#     print('lat_center: ',lat_center.shape)\n",
    "#     print('time: ', time.shape)\n",
    "#     print('lat_corner: ', lat_corner.shape)\n",
    "#     print('Relationship between collocated pixel / corner and center latitude')\n",
    "#     for i in np.arange(4):\n",
    "#         print('Corner - ', i, ' : ', lat_corner[0,1000,100,i])\n",
    "#     print('\\nCenter: ',lat_center[0,1000,100])\n",
    "\n",
    "#     print('\\nRatio of size between corner lat and center lat')\n",
    "#     print(lat_center.size/lat_corner.size)\n",
    "\n",
    "#     print('\\n Example code showing the size of dimension of each respective variables')\n",
    "#     for i in np.arange(lat_center.ndim):\n",
    "#         print((lat_center.shape)[i])\n",
    "\n",
    "    \n",
    "    # Processing the data \n",
    "    # Find pixel corresponding to predetermined lat-lon\n",
    "    # Then saving the data in matrix form (basically a time series data)\n",
    "    # tolrange=0.25    #deg  # pre-defined above\n",
    "    #qa_value_threshold=50 #recommended to be >75 (screen out the case with significant cloud cover) but can be altered to >50 (when including some successful retrieval over clouds)\n",
    "    locfilter=(lat_center > lat_pandora-tolrange) & (lat_center < lat_pandora+tolrange) & (lon_center > lon_pandora-tolrange) & (lon_center < lon_pandora+tolrange)\n",
    "    \n",
    "    if np.sum(locfilter) != 0:\n",
    "        temptime=time[locfilter]\n",
    "        tempVCD=VCD[locfilter]\n",
    "        tempVCD_summed=VCD_summed[locfilter]\n",
    "        tempVCD_trop=VCD_trop[locfilter]\n",
    "        tempSCD=SCD[locfilter]\n",
    "        tempqa_value=qa_value[locfilter]\n",
    "        templat_center=lat_center[locfilter]\n",
    "        templon_center=lon_center[locfilter]\n",
    "        templat_corner=np.zeros([np.sum(locfilter), 4])\n",
    "        templon_corner=np.zeros([np.sum(locfilter), 4])\n",
    "        for i in np.arange(4):\n",
    "            templat_corner[:,i]=(lat_corner[:,:,:,i])[locfilter]\n",
    "            templon_corner[:,i]=(lon_corner[:,:,:,i])[locfilter]\n",
    "        \n",
    "        # lat & lon center 를 기준으로 가장 가까운 n**2개의 pixel을 산정하여 평균! --> timestep도 마찬가지  \n",
    "        # n**2개의 pixel이 +/- tolrange (Deg) 안에 존재하는 경우에만 진행\n",
    "        if pixel_coadd**2 <= np.sum(locfilter):\n",
    "            dlat=np.abs(templat_center-lat_pandora)\n",
    "            dlon=np.abs(templon_center-lon_pandora)\n",
    "            dlonw=dlon*np.cos(lat_pandora*np.pi/180.)\n",
    "            dist=(dlat**2 + dlonw**2)**(0.5)\n",
    "            loc= np.argmin(dist) #integer index\n",
    "            \n",
    "            \n",
    "            # finding cases: only when the pixel including the Pandora site exists\n",
    "            if ((np.max(templat_corner[loc,:])-lat_pandora)*(np.min(templat_corner[loc,:])-lat_pandora) < 0) & ((np.max(templon_corner[loc,:])-lon_pandora)*(np.min(templon_corner[loc,:])-lon_pandora) <0):\n",
    "                \n",
    "                cand=np.sort(dist)[0:pixel_coadd**2]\n",
    "\n",
    "                temptime2=np.zeros([pixel_coadd**2]).astype(np.string_)\n",
    "                # string array can be done by command below.\n",
    "                # temptime2=np.array([pixel_coadd**2], dtype=string)\n",
    "                tempVCD2=np.zeros([pixel_coadd**2])\n",
    "                tempVCD_summed2=np.zeros([pixel_coadd**2])\n",
    "                tempVCD_trop2=np.zeros([pixel_coadd**2])\n",
    "                tempSCD2=np.zeros([pixel_coadd**2])\n",
    "                tempqa_value2=np.zeros([pixel_coadd**2])\n",
    "                templat_center2=np.zeros([pixel_coadd**2])\n",
    "                templon_center2=np.zeros([pixel_coadd**2])\n",
    "                templat_corner2=np.zeros([pixel_coadd**2, 4])\n",
    "                templon_corner2=np.zeros([pixel_coadd**2, 4])\n",
    "                \n",
    "                for i in np.arange(pixel_coadd**2):\n",
    "                    loc2= (dist==cand[i])\n",
    "                    temptime2[i]=(temptime[loc2])[0]\n",
    "                    tempVCD2[i]=tempVCD[loc2]\n",
    "                    tempVCD_summed2[i]=tempVCD_summed[loc2]\n",
    "                    tempVCD_trop2[i]=tempVCD_trop[loc2]\n",
    "                    tempSCD2[i]=tempSCD[loc2]\n",
    "                    tempqa_value2[i]=tempqa_value[loc2]\n",
    "                    templat_center2[i]=templat_center[loc2]\n",
    "                    templon_center2[i]=templon_center[loc2]\n",
    "                    for j in np.arange(4):\n",
    "                        templat_corner2[i,j]=(templat_corner[:,j])[loc2]\n",
    "                        templon_corner2[i,j]=(templon_corner[:,j])[loc2]\n",
    "            \n",
    "                print('Threshold qa value: must exceed ', qa_value_threshold)\n",
    "                print('Average Validity exceeding the qa_value threshold (>',qa_value_threshold,'): ', '%7.3f'%(np.sum(qa_value>75)/np.size(VCD)*100) ,' %')\n",
    "                print('\\nNumber of Quality Assured valid pixels accounted in averaging / Number of pixels to coadded')\n",
    "                print(np.sum(tempqa_value2>qa_value_threshold), ' / ', pixel_coadd**2)\n",
    "                print('qa value for collocated pixels: \\n', tempqa_value2)\n",
    "                print('\\nThe original VCD_summed (Trop+Strat) value for collocated pixels (DU): ')\n",
    "                for i,e in enumerate(tempVCD_summed2):\n",
    "                    print('%6.3e'%(e*unittoDU))\n",
    "\n",
    "                # Quality and nan screening \n",
    "                # with qa_value\n",
    "                tempVCD2=np.where(tempqa_value2>qa_value_threshold, tempVCD2, np.nan)\n",
    "                tempVCD_summed2=np.where(tempqa_value2>qa_value_threshold, tempVCD_summed2, np.nan)\n",
    "                tempVCD_trop2=np.where(tempqa_value2>qa_value_threshold, tempVCD_trop2, np.nan)\n",
    "                tempSCD2=np.where(tempqa_value2>qa_value_threshold, tempSCD2, np.nan)\n",
    "                # with fill value\n",
    "                tempVCD2=np.where(tempVCD2>9.9E20, np.nan, tempVCD2)\n",
    "                tempVCD_summed2=np.where(tempVCD_summed2>9.9E20, np.nan, tempVCD_summed2)\n",
    "                tempVCD_trop2=np.where(tempVCD_trop2>9.9E20, np.nan, tempVCD_trop2)\n",
    "                tempSCD2=np.where(tempSCD2>9.9E20, np.nan, tempSCD2)\n",
    "                \n",
    "                # \"temp*2\" 변수들을 평균하여 Final Variable들에 저장. \n",
    "                temptimedata=np.zeros([1,7])  # [yy,mm,dd,hh,min,sec,microsec]\n",
    "                tempsciencedata=np.zeros([1,6])  # [VCD, VCDsummed, VCD_trop, SCD, qa_value, No. QA-valid pixels]\n",
    "                tempgeodata=np.zeros([1,10])  # [lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]\n",
    "                \n",
    "                # Dealing with the time data ;; using datetime package \n",
    "                temptime2datalist=[]\n",
    "                for i, e in enumerate(temptime2):\n",
    "                    tt=e.decode()\n",
    "                    temptime2datalist.append(dt.datetime.strptime(tt, '%Y-%m-%dT%H:%M:%S.%fZ'))\n",
    "                    #Easy alternative is to use \"parser\" as below. \n",
    "                    #temptime2datalist[i]=parse(e)\n",
    "                \n",
    "                momo=[]\n",
    "                for i, e in enumerate(temptime2datalist):\n",
    "                    momo.append(e.timestamp())\n",
    "                \n",
    "                finaltemptime2=dt.datetime.fromtimestamp(np.mean(momo))\n",
    "\n",
    "                print('\\nAverage time of the collocated pixels: ', finaltemptime2)\n",
    "                print('\\nAverage column densities for valid (filtered with qa flag) collocated pixels')\n",
    "                print('VCD: ', '%6.3e'%(np.nanmean(tempVCD2)*unittoDU), 'DU')\n",
    "                print('VCD_summed (VCD_trop+VCD_strat): ', '%6.3e'%(np.nanmean(tempVCD_summed2)*unittoDU), 'DU')\n",
    "                print('VCD_trop: ', '%6.3e'%(np.nanmean(tempVCD_trop2)*unittoDU), 'DU')\n",
    "                print('SCD: ', '%6.3e'%(np.nanmean(tempSCD2)*unittoDU), 'DU')\n",
    "                print('[Recommended to use VCD_summed instead of VCD for the comparison with ground-based instruments (ref. p.30 and Table 6, TROPOMI ATBD)]')\n",
    "\n",
    "                temptimedata[0,0]=finaltemptime2.year\n",
    "                temptimedata[0,1]=finaltemptime2.month\n",
    "                temptimedata[0,2]=finaltemptime2.day\n",
    "                temptimedata[0,3]=finaltemptime2.hour\n",
    "                temptimedata[0,4]=finaltemptime2.minute\n",
    "                temptimedata[0,5]=finaltemptime2.second\n",
    "                temptimedata[0,6]=finaltemptime2.microsecond\n",
    "                \n",
    "                # Convert Column density unit from mol/m^2 to DU\n",
    "                tempsciencedata[0,0]=np.nanmean(tempVCD2)*unittoDU\n",
    "                tempsciencedata[0,1]=np.nanmean(tempVCD_summed2)*unittoDU\n",
    "                tempsciencedata[0,2]=np.nanmean(tempVCD_trop2)*unittoDU\n",
    "                tempsciencedata[0,3]=np.nanmean(tempSCD2)*unittoDU\n",
    "                tempsciencedata[0,4]=np.nanmean(tempqa_value2)\n",
    "                tempsciencedata[0,5]=np.sum(tempqa_value2>qa_value_threshold)\n",
    "                \n",
    "                tempgeodata[0,0]=np.nanmean(templat_center2)\n",
    "                tempgeodata[0,5]=np.nanmean(templon_center2)\n",
    "                tempgeodata[0,1:5]=np.nanmean(templat_corner2, axis=0)\n",
    "                tempgeodata[0,6:10]=np.nanmean(templon_corner2, axis=0)\n",
    "                \n",
    "                if validfilecount == 0: \n",
    "                    axisboo=1\n",
    "                else:\n",
    "                    axisboo=0\n",
    "                timedata=np.append(timedata, temptimedata, axis=axisboo)\n",
    "                sciencedata=np.append(sciencedata, tempsciencedata, axis=axisboo)\n",
    "                geodata=np.append(geodata, tempgeodata, axis=axisboo)\n",
    "\n",
    "                validfilecount+=1\n",
    "    \n",
    "            \n",
    "            \n",
    "            else:\n",
    "                print('* Something is Wrong.... probably because no exact pixel including Pandora_lat&lon')\n",
    "                print('* Skipping current file / moving to the next file')\n",
    "\n",
    "        else:\n",
    "            print('** There is a satellite pixels within +/-', tolrange, 'deg but not sufficient valid collocated pixel:', np.sum(locfilter), '/', pixel_coadd**2)\n",
    "            print('** Skipping current file / moving to the next file')\n",
    "    \n",
    "    \n",
    "    \n",
    "    \n",
    "    else:\n",
    "        print('*** There is no collocated pixel with Pandora at ',sitename,' +/-', tolrange, 'deg')\n",
    "        print('*** Skipping current file / moving to the next file')\n",
    "\n",
    "\n",
    "    f.close()\n",
    "    print((fno+1)/len(files3)*100, '% completed\\n')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Valid file count:  637 / 1677\n",
      "timedata:  (637, 7) [yy,mm,dd,hh,min,sec,microsec]\n",
      "[[2.019e+03 1.000e+01 2.000e+00 ... 4.800e+01 4.400e+01 7.790e+05]\n",
      " [2.019e+03 1.000e+01 2.000e+00 ... 2.800e+01 5.800e+01 1.230e+05]\n",
      " [2.019e+03 1.000e+01 3.000e+00 ... 9.000e+00 5.600e+01 7.470e+05]\n",
      " ...\n",
      " [2.021e+03 2.000e+00 2.600e+01 ... 1.000e+01 1.000e+00 4.400e+04]\n",
      " [2.021e+03 2.000e+00 2.700e+01 ... 5.100e+01 4.000e+00 1.200e+05]\n",
      " [2.021e+03 2.000e+00 2.800e+01 ... 3.200e+01 1.400e+01 1.970e+05]] \n",
      "\n",
      "sciencedata:  (637, 6) [VCD, VCDsummed, VCD_trop, SCD, qa_value, No. of QA-valid pixels]\n",
      "[[         nan          nan          nan          nan  33.\n",
      "    0.        ]\n",
      " [         nan          nan          nan          nan  33.\n",
      "    0.        ]\n",
      " [         nan          nan          nan          nan  74.\n",
      "    0.        ]\n",
      " ...\n",
      " [  0.4046372    0.42461796   0.30580581   0.73638051 100.\n",
      "    1.        ]\n",
      " [  0.36099266   0.37128781   0.25413113   0.60183548 100.\n",
      "    1.        ]\n",
      " [         nan          nan          nan          nan  33.\n",
      "    0.        ]] \n",
      "\n",
      "geodata:  (637, 10) [lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]\n",
      "[[ 37.45946121  37.41106033  37.46070099 ... 127.00447083 126.98120117\n",
      "  126.87008667]\n",
      " [ 37.4548645   37.43274307  37.42838287 ... 126.98535156 126.97879028\n",
      "  126.82060242]\n",
      " [ 37.46788406  37.44220352  37.44455338 ... 127.02388763 127.01428223\n",
      "  126.92912292]\n",
      " ...\n",
      " [ 37.48134232  37.45578384  37.45792389 ... 127.03108215 127.02158356\n",
      "  126.93344116]\n",
      " [ 37.47701645  37.44979095  37.45518112 ... 126.98937988 126.97670746\n",
      "  126.92686462]\n",
      " [ 37.44867325  37.41997147  37.42853546 ... 126.98769379 126.97183228\n",
      "  126.93215179]] \n",
      "\n"
     ]
    }
   ],
   "source": [
    "print('Valid file count: ', validfilecount, '/', len(files3))\n",
    "print('timedata: ', timedata.shape, '[yy,mm,dd,hh,min,sec,microsec]')\n",
    "print(timedata, '\\n')\n",
    "print('sciencedata: ', sciencedata.shape, '[VCD, VCDsummed, VCD_trop, SCD, qa_value, No. of QA-valid pixels]')\n",
    "print(sciencedata, '\\n')\n",
    "print('geodata: ', geodata.shape, '[lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]')\n",
    "print(geodata, '\\n')\n",
    "# print(tempqa_value2)\n",
    "# print((tempVCD[loc2])[0])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Writing a file as ASCII\n",
    "savedir='/home/jwpark/TROPOMI/data/processeddata/until20210531/'\n",
    "# ftimedata=open(savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'%i'%pixel_coadd+'timedata.txt', 'w')\n",
    "# fsciencedata=open(savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'%i'%pixel_coadd+'sciencedata.txt', 'w')\n",
    "# fgeodata=open(savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'%i'%pixel_coadd+'geodata.txt', 'w')\n",
    "ftimedata=savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'_%i_pixelcoadded'%pixel_coadd+'_timedata.txt'\n",
    "fsciencedata=savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'_%i_pixelcoadded'%pixel_coadd+'_sciencedata.txt'\n",
    "fgeodata=savedir+'TROPOMI_TCN_collocatedwithPandora_'+sitename+'_%i_pixelcoadded'%pixel_coadd+'_geodata.txt'\n",
    "\n",
    "np.savetxt(ftimedata, timedata, fmt='%4i,%2i,%2i,%2i,%2i,%2i,%6i', header='[yy,mm,dd,hh,min,sec,microsec]')\n",
    "np.savetxt(fsciencedata, sciencedata, fmt='%9.6f,%9.6f,%9.6f,%9.6f,%7.2f,%i', header='[VCD, VCDsummed, VCD_trop, SCD, qa_value, No. of QA-valid pixels] / Column densities are in DU')\n",
    "np.savetxt(fgeodata, geodata, fmt='%9.4f', header='[lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]', delimiter=',')\n",
    "\n",
    "\n",
    "# ftimedata.close()\n",
    "# fsciencedata.close()\n",
    "# fgeodata.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Writing a file as Binary\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "# # 예시 코드 :: 기본적인 배열 선언 및 where사용 \n",
    "# a=np.arange(10).reshape(5,2)  # can use '-1' for last column\n",
    "# b=np.zeros([4,5])\n",
    "# str='a'\n",
    "# print('Here is an array called \"'+str+'\"')\n",
    "# print(a)\n",
    "\n",
    "# print('\\nHere is an example of \"where\" command')\n",
    "# mask=(a>3) & (a<7)\n",
    "# print(mask)\n",
    "# c=a[mask]\n",
    "# print(c)\n",
    "\n",
    "        \n",
    "# # 배열 크기 확인하기\n",
    "# print('\\nChecking the size of an array')\n",
    "# print(a.shape)\n",
    "# print(a.ndim)\n",
    "# print(a.size)\n",
    "# print(len(a), len(b))  # returns the length of first column \n",
    "# print(len(np.arange(5)))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "# datetime 패키지 사용의 예\n",
    "#print(temptime2)\n",
    "# a = []\n",
    "# for i, e in enumerate(temptime2):\n",
    "#     yymmdd=e.decode()\n",
    "#     a.append(dt.datetime.strptime(yymmdd, '%Y-%m-%dT%H:%M:%S.%fZ'))\n",
    "\n",
    "# a[0].microsecond\n",
    "# c=dt.datetime.strptime(temptime2[0].decode(), '%Y-%m-%dT%H:%M:%S.%fZ' )\n",
    "\n",
    "\n",
    "# Using dateutil.parser package\n",
    "# b=parse(temptime2[0])\n",
    "# momo=[]\n",
    "# for i, e in enumerate(a):\n",
    "#     momo.append(e.timestamp())\n",
    "# print(momo)\n",
    "# print(np.mean(momo), '\\n')\n",
    "# kk=dt.datetime.fromtimestamp(np.mean(momo))\n",
    "# kk"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "# a=tempqa_value2>qa_value_threshold\n",
    "# a[5]=False\n",
    "# np.sum(a)\n",
    "# k=VCD_summed-VCD\n",
    "# print(np.nanmean(k))\n",
    "# print(np.nanstd(k))\n",
    "# print(templat_center2)\n",
    "# print(templon_center2, '\\n')\n",
    "# print(templat_corner2, '\\n')\n",
    "# print(templon_corner2, '\\n')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "# yymmdd=temptime2[0].decode().split('T')[0]\n",
    "# print(yymmdd)\n",
    "# timeN=time[0,1000].decode()\n",
    "# yymmdd=timeN.split('T')[0]\n",
    "# hhmmss=timeN.split('T')[-1]\n",
    "# hhmmss=hhmmss.split('Z')[0]\n",
    "# yymmdd=dt.date.fromisoformat(yymmdd)\n",
    "# hhmmss=dt.time.fromisoformat(hhmmss)\n",
    "# print(yymmdd)\n",
    "# print(hhmmss)\n",
    "\n",
    "# zz=datetime.fromisoformat('2011-11-04 00:05:23.283')\n",
    "# print(zz)\n",
    "# print(time2)\n",
    "# temptime[loc2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[b'2020-09-19T05:09:36.687000Z' b'2020-09-19T05:09:37.527000Z'\n",
      " b'2020-09-19T05:09:36.687000Z' b'2020-09-19T05:09:35.847000Z']\n",
      "[0.00016262 0.00015962 0.00016505 0.00019491] \n",
      " [0.00019153 0.00017969 0.00019122 0.00024237] \n",
      " [0.00014341 0.00013148 0.0001431  0.00019435] \n",
      " [0.00029462 0.00030711 0.00030853 0.00035718]\n",
      "\n",
      " 0.00020120102271903306\n",
      "Variable             Type        Data/Info\n",
      "------------------------------------------\n",
      "SCD                  ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "VCD                  ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "VCD_summed           ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "VCD_trop             ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "axisboo              int         0\n",
      "cand                 ndarray     4: 4 elems, type `float32`, 16 bytes\n",
      "datdir               str         /Users/jonguk/Desktop/Pan<...>parison/data/TROPOMI/TCN/\n",
      "detailed_results     Group       <Closed HDF5 group>\n",
      "dist                 ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "dlat                 ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "dlon                 ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "dlonw                ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "dt                   module      <module 'datetime' from '<...>b/python3.8/datetime.py'>\n",
      "e                    datetime    2020-09-19 05:09:35.847000\n",
      "f                    File        <Closed HDF5 file>\n",
      "files                list        n=33\n",
      "files2               list        n=32\n",
      "files3               list        n=32\n",
      "finaltemptime2       datetime    2020-09-19 05:09:36.687000\n",
      "fname                str         /Users/jonguk/Desktop/Pan<...>010302_20200803T163224.nc\n",
      "fno                  int         31\n",
      "geodata              ndarray     18x10: 180 elems, type `float64`, 1440 bytes\n",
      "geolocations         Group       <Closed HDF5 group>\n",
      "ghost                Dataset     <Closed HDF5 dataset>\n",
      "glob                 module      <module 'glob' from '/opt<...>3/lib/python3.8/glob.py'>\n",
      "h5py                 module      <module 'h5py' from '/opt<...>ckages/h5py/__init__.py'>\n",
      "i                    int64       449\n",
      "j                    int64       3\n",
      "lat_center           ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "lat_corner           ndarray     1x4172x450x4: 7509600 elems, type `float32`, 30038400 bytes (28.6468505859375 Mb)\n",
      "lat_pandora          float       37.458\n",
      "loc                  int64       27\n",
      "loc2                 ndarray     59: 59 elems, type `bool`, 59 bytes\n",
      "locfilter            ndarray     1x4172x450: 1877400 elems, type `bool`, 1877400 bytes (1.7904281616210938 Mb)\n",
      "lon_center           ndarray     1x4172x450: 1877400 elems, type `float32`, 7509600 bytes (7.161712646484375 Mb)\n",
      "lon_corner           ndarray     1x4172x450x4: 7509600 elems, type `float32`, 30038400 bytes (28.6468505859375 Mb)\n",
      "lon_pandora          float       126.951\n",
      "momo                 list        n=4\n",
      "np                   module      <module 'numpy' from '/op<...>kages/numpy/__init__.py'>\n",
      "os                   module      <module 'os' from '/opt/a<...>da3/lib/python3.8/os.py'>\n",
      "parse                function    <function parse at 0x7fb01926b790>\n",
      "pd                   module      <module 'pandas' from '/o<...>ages/pandas/__init__.py'>\n",
      "pixel_coadd          int         2\n",
      "plt                  module      <module 'matplotlib.pyplo<...>es/matplotlib/pyplot.py'>\n",
      "product              Group       <Closed HDF5 group>\n",
      "qa_value             ndarray     1x4172x450: 1877400 elems, type `uint8`, 1877400 bytes (1.7904281616210938 Mb)\n",
      "qa_value_threshold   int         75\n",
      "sciencedata          ndarray     18x6: 108 elems, type `float64`, 864 bytes\n",
      "sitename             str         Seoul_SNU\n",
      "supportdata          Group       <Closed HDF5 group>\n",
      "tempSCD              ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "tempSCD2             ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "tempVCD              ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "tempVCD2             ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "tempVCD_summed       ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "tempVCD_summed2      ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "tempVCD_trop         ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "tempVCD_trop2        ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "tempgeodata          ndarray     1x10: 10 elems, type `float64`, 80 bytes\n",
      "templat_center       ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "templat_center2      ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "templat_corner       ndarray     59x4: 236 elems, type `float64`, 1888 bytes\n",
      "templat_corner2      ndarray     4x4: 16 elems, type `float64`, 128 bytes\n",
      "templon_center       ndarray     59: 59 elems, type `float32`, 236 bytes\n",
      "templon_center2      ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "templon_corner       ndarray     59x4: 236 elems, type `float64`, 1888 bytes\n",
      "templon_corner2      ndarray     4x4: 16 elems, type `float64`, 128 bytes\n",
      "tempqa_value         ndarray     59: 59 elems, type `uint8`, 59 bytes\n",
      "tempqa_value2        ndarray     4: 4 elems, type `float64`, 32 bytes\n",
      "tempsciencedata      ndarray     1x6: 6 elems, type `float64`, 48 bytes\n",
      "temptime             ndarray     59: 59 elems, type `|S32`, 1888 bytes\n",
      "temptime2            ndarray     4: 4 elems, type `|S32`, 128 bytes\n",
      "temptime2datalist    list        n=4\n",
      "temptimedata         ndarray     1x7: 7 elems, type `float64`, 56 bytes\n",
      "time                 ndarray     1x4172x450: 1877400 elems, type `|S32`, 60076800 bytes (57.293701171875 Mb)\n",
      "timeN                ndarray     1x4172x450: 1877400 elems, type `|S32`, 60076800 bytes (57.293701171875 Mb)\n",
      "timedata             ndarray     18x7: 126 elems, type `float64`, 1008 bytes\n",
      "tolrange             float       0.25\n",
      "tt                   str         2020-09-19T05:09:35.847000Z\n",
      "unittoDU             float       2241.15\n",
      "validfilecount       int         18\n"
     ]
    }
   ],
   "source": [
    "#print(np.sum(locfilter))\n",
    "#print(dist)\n",
    "#print(np.min(dist))\n",
    "#print(cand)\n",
    "print(temptime2)\n",
    "#print(templat_corner2)\n",
    "#print(templon_corner2)\n",
    "print(tempVCD2,'\\n', tempVCD_summed2, '\\n',tempVCD_trop2, '\\n', tempSCD2)\n",
    "print('\\n', np.nanmean(tempVCD_summed2))\n",
    "\n",
    "%whos\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [],
   "source": [
    "# timedata=np.zeros([1,7])  # [yy,mm,dd,hh,min,sec,microsec]\n",
    "# sciencedata=np.zeros([1,5])  # [VCD, VCDsummed, VCD_trop, SCD, qa_value]\n",
    "# geodata=np.zeros([1,10])  # [lat_center,lat_corner(0~3), lon_center, lon_corner(0~3)]\n",
    "\n",
    "# tt=np.concatenate((geodata, np.arange(10).reshape(1,-1)), axis=0)\n",
    "# print(tt)\n",
    "# tempi=np.zeros([1,0])\n",
    "# tempi=np.append(tempi, np.array([10]))\n",
    "# tempi=np.append(tempi, np.array([20]))\n",
    "# tempi\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
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